Home / 788,491.38-1,088,118.52-425,915.23

Finding the Fourth Proportional to 788,491.38, 1,088,118.52 and 425,915.23

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Solution

The fourth proportional to 788,491.38, 1,088,118.52 and 425,915.23 is: 587,763.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,491.38 : 1,088,118.52 = 425,915.23 : x
  2. Step 2: Convert to fraction form
    788,491.38/1,088,118.52 = 425,915.23/x
  3. Step 3: Cross multiply
    788,491.38x = 1,088,118.52 × 425,915.23
  4. Step 4: Simplify right side
    788,491.38x = 463,446,249,713.06
  5. Step 5: Solve for x
    x = 463,446,249,713.06/788,491.38
  6. Step 6: Final answer
    x = 587,763.24

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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.