Home / 420,013.40-574,981.33-417,011.72

Finding the Fourth Proportional to 420,013.40, 574,981.33 and 417,011.72

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Solution

The fourth proportional to 420,013.40, 574,981.33 and 417,011.72 is: 570,872.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,013.40 : 574,981.33 = 417,011.72 : x
  2. Step 2: Convert to fraction form
    420,013.40/574,981.33 = 417,011.72/x
  3. Step 3: Cross multiply
    420,013.40x = 574,981.33 × 417,011.72
  4. Step 4: Simplify right side
    420,013.40x = 239,773,953,391.19
  5. Step 5: Solve for x
    x = 239,773,953,391.19/420,013.40
  6. Step 6: Final answer
    x = 570,872.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.