Home / 724,803.37-1,000,242.20-402,543.65

Finding the Fourth Proportional to 724,803.37, 1,000,242.20 and 402,543.65

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Solution

The fourth proportional to 724,803.37, 1,000,242.20 and 402,543.65 is: 555,517.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,803.37 : 1,000,242.20 = 402,543.65 : x
  2. Step 2: Convert to fraction form
    724,803.37/1,000,242.20 = 402,543.65/x
  3. Step 3: Cross multiply
    724,803.37x = 1,000,242.20 × 402,543.65
  4. Step 4: Simplify right side
    724,803.37x = 402,641,146,072.03
  5. Step 5: Solve for x
    x = 402,641,146,072.03/724,803.37
  6. Step 6: Final answer
    x = 555,517.76

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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.