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Finding the Fourth Proportional to 581,618.80, 815,925.20 and 581,618.80

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Solution

The fourth proportional to 581,618.80, 815,925.20 and 581,618.80 is: 815,925.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,618.80 : 815,925.20 = 581,618.80 : x
  2. Step 2: Convert to fraction form
    581,618.80/815,925.20 = 581,618.80/x
  3. Step 3: Cross multiply
    581,618.80x = 815,925.20 × 581,618.80
  4. Step 4: Simplify right side
    581,618.80x = 474,557,435,713.76
  5. Step 5: Solve for x
    x = 474,557,435,713.76/581,618.80
  6. Step 6: Final answer
    x = 815,925.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.