Home / 1,128,338.60-1,691,429.10-418,176.20

Finding the Fourth Proportional to 1,128,338.60, 1,691,429.10 and 418,176.20

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Solution

The fourth proportional to 1,128,338.60, 1,691,429.10 and 418,176.20 is: 626,864.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,338.60 : 1,691,429.10 = 418,176.20 : x
  2. Step 2: Convert to fraction form
    1,128,338.60/1,691,429.10 = 418,176.20/x
  3. Step 3: Cross multiply
    1,128,338.60x = 1,691,429.10 × 418,176.20
  4. Step 4: Simplify right side
    1,128,338.60x = 707,315,393,607.42
  5. Step 5: Solve for x
    x = 707,315,393,607.42/1,128,338.60
  6. Step 6: Final answer
    x = 626,864.48

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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.