Home / 723,373.80-1,085,060.70-471,431.40

Finding the Fourth Proportional to 723,373.80, 1,085,060.70 and 471,431.40

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Solution

The fourth proportional to 723,373.80, 1,085,060.70 and 471,431.40 is: 707,147.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,373.80 : 1,085,060.70 = 471,431.40 : x
  2. Step 2: Convert to fraction form
    723,373.80/1,085,060.70 = 471,431.40/x
  3. Step 3: Cross multiply
    723,373.80x = 1,085,060.70 × 471,431.40
  4. Step 4: Simplify right side
    723,373.80x = 511,531,684,885.98
  5. Step 5: Solve for x
    x = 511,531,684,885.98/723,373.80
  6. Step 6: Final answer
    x = 707,147.10

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Double scale
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Similar ratio
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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.