Home / 956,877.20-1,435,315.80-425,436.20

Finding the Fourth Proportional to 956,877.20, 1,435,315.80 and 425,436.20

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Solution

The fourth proportional to 956,877.20, 1,435,315.80 and 425,436.20 is: 638,154.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    956,877.20 : 1,435,315.80 = 425,436.20 : x
  2. Step 2: Convert to fraction form
    956,877.20/1,435,315.80 = 425,436.20/x
  3. Step 3: Cross multiply
    956,877.20x = 1,435,315.80 × 425,436.20
  4. Step 4: Simplify right side
    956,877.20x = 610,635,299,751.96
  5. Step 5: Solve for x
    x = 610,635,299,751.96/956,877.20
  6. Step 6: Final answer
    x = 638,154.30

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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.