Home / 885,308.20-1,328,382.43-458,764.29

Finding the Fourth Proportional to 885,308.20, 1,328,382.43 and 458,764.29

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Solution

The fourth proportional to 885,308.20, 1,328,382.43 and 458,764.29 is: 688,364.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,308.20 : 1,328,382.43 = 458,764.29 : x
  2. Step 2: Convert to fraction form
    885,308.20/1,328,382.43 = 458,764.29/x
  3. Step 3: Cross multiply
    885,308.20x = 1,328,382.43 × 458,764.29
  4. Step 4: Simplify right side
    885,308.20x = 609,414,421,200.51
  5. Step 5: Solve for x
    x = 609,414,421,200.51/885,308.20
  6. Step 6: Final answer
    x = 688,364.15

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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.