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Finding the Fourth Proportional to 572,553.40, 858,830.10 and 520,065.40

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Solution

The fourth proportional to 572,553.40, 858,830.10 and 520,065.40 is: 780,098.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,553.40 : 858,830.10 = 520,065.40 : x
  2. Step 2: Convert to fraction form
    572,553.40/858,830.10 = 520,065.40/x
  3. Step 3: Cross multiply
    572,553.40x = 858,830.10 × 520,065.40
  4. Step 4: Simplify right side
    572,553.40x = 446,647,819,488.54
  5. Step 5: Solve for x
    x = 446,647,819,488.54/572,553.40
  6. Step 6: Final answer
    x = 780,098.10

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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.