Home / 712,760.32-983,609.16-426,280.36

Finding the Fourth Proportional to 712,760.32, 983,609.16 and 426,280.36

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Solution

The fourth proportional to 712,760.32, 983,609.16 and 426,280.36 is: 588,266.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,760.32 : 983,609.16 = 426,280.36 : x
  2. Step 2: Convert to fraction form
    712,760.32/983,609.16 = 426,280.36/x
  3. Step 3: Cross multiply
    712,760.32x = 983,609.16 × 426,280.36
  4. Step 4: Simplify right side
    712,760.32x = 419,293,266,824.10
  5. Step 5: Solve for x
    x = 419,293,266,824.10/712,760.32
  6. Step 6: Final answer
    x = 588,266.85

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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.