Home / 811,875.16-1,120,360.02-449,314.24

Finding the Fourth Proportional to 811,875.16, 1,120,360.02 and 449,314.24

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Solution

The fourth proportional to 811,875.16, 1,120,360.02 and 449,314.24 is: 620,038.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,875.16 : 1,120,360.02 = 449,314.24 : x
  2. Step 2: Convert to fraction form
    811,875.16/1,120,360.02 = 449,314.24/x
  3. Step 3: Cross multiply
    811,875.16x = 1,120,360.02 × 449,314.24
  4. Step 4: Simplify right side
    811,875.16x = 503,393,710,912.69
  5. Step 5: Solve for x
    x = 503,393,710,912.69/811,875.16
  6. Step 6: Final answer
    x = 620,038.32

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.