Home / 1,402,130.78-2,103,550.11-391,251.88

Finding the Fourth Proportional to 1,402,130.78, 2,103,550.11 and 391,251.88

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Solution

The fourth proportional to 1,402,130.78, 2,103,550.11 and 391,251.88 is: 586,976.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,402,130.78 : 2,103,550.11 = 391,251.88 : x
  2. Step 2: Convert to fraction form
    1,402,130.78/2,103,550.11 = 391,251.88/x
  3. Step 3: Cross multiply
    1,402,130.78x = 2,103,550.11 × 391,251.88
  4. Step 4: Simplify right side
    1,402,130.78x = 823,017,935,211.71
  5. Step 5: Solve for x
    x = 823,017,935,211.71/1,402,130.78
  6. Step 6: Final answer
    x = 586,976.58

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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.