Home / 3,572,140.80-5,358,211.20-912,748.80

Finding the Fourth Proportional to 3,572,140.80, 5,358,211.20 and 912,748.80

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Solution

The fourth proportional to 3,572,140.80, 5,358,211.20 and 912,748.80 is: 1,369,123.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,572,140.80 : 5,358,211.20 = 912,748.80 : x
  2. Step 2: Convert to fraction form
    3,572,140.80/5,358,211.20 = 912,748.80/x
  3. Step 3: Cross multiply
    3,572,140.80x = 5,358,211.20 × 912,748.80
  4. Step 4: Simplify right side
    3,572,140.80x = 4,890,700,842,946.56
  5. Step 5: Solve for x
    x = 4,890,700,842,946.56/3,572,140.80
  6. Step 6: Final answer
    x = 1,369,123.20

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Similar ratio
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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.