Home / 724,685.96-1,000,158.89-438,208.10

Finding the Fourth Proportional to 724,685.96, 1,000,158.89 and 438,208.10

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Solution

The fourth proportional to 724,685.96, 1,000,158.89 and 438,208.10 is: 604,782.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,685.96 : 1,000,158.89 = 438,208.10 : x
  2. Step 2: Convert to fraction form
    724,685.96/1,000,158.89 = 438,208.10/x
  3. Step 3: Cross multiply
    724,685.96x = 1,000,158.89 × 438,208.10
  4. Step 4: Simplify right side
    724,685.96x = 438,277,719,693.17
  5. Step 5: Solve for x
    x = 438,277,719,693.17/724,685.96
  6. Step 6: Final answer
    x = 604,782.96

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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.