Home / 724,803.62-1,000,242.54-402,543.90

Finding the Fourth Proportional to 724,803.62, 1,000,242.54 and 402,543.90

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Solution

The fourth proportional to 724,803.62, 1,000,242.54 and 402,543.90 is: 555,518.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,803.62 : 1,000,242.54 = 402,543.90 : x
  2. Step 2: Convert to fraction form
    724,803.62/1,000,242.54 = 402,543.90/x
  3. Step 3: Cross multiply
    724,803.62x = 1,000,242.54 × 402,543.90
  4. Step 4: Simplify right side
    724,803.62x = 402,641,532,997.51
  5. Step 5: Solve for x
    x = 402,641,532,997.51/724,803.62
  6. Step 6: Final answer
    x = 555,518.11

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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.