Home / 885,689.02-1,328,744.34-286,650.18

Finding the Fourth Proportional to 885,689.02, 1,328,744.34 and 286,650.18

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Solution

The fourth proportional to 885,689.02, 1,328,744.34 and 286,650.18 is: 430,043.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,689.02 : 1,328,744.34 = 286,650.18 : x
  2. Step 2: Convert to fraction form
    885,689.02/1,328,744.34 = 286,650.18/x
  3. Step 3: Cross multiply
    885,689.02x = 1,328,744.34 × 286,650.18
  4. Step 4: Simplify right side
    885,689.02x = 380,884,804,234.98
  5. Step 5: Solve for x
    x = 380,884,804,234.98/885,689.02
  6. Step 6: Final answer
    x = 430,043.50

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.