Home / 687,075.70-1,030,613.55-477,123.70

Finding the Fourth Proportional to 687,075.70, 1,030,613.55 and 477,123.70

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Solution

The fourth proportional to 687,075.70, 1,030,613.55 and 477,123.70 is: 715,685.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,075.70 : 1,030,613.55 = 477,123.70 : x
  2. Step 2: Convert to fraction form
    687,075.70/1,030,613.55 = 477,123.70/x
  3. Step 3: Cross multiply
    687,075.70x = 1,030,613.55 × 477,123.70
  4. Step 4: Simplify right side
    687,075.70x = 491,730,150,246.14
  5. Step 5: Solve for x
    x = 491,730,150,246.14/687,075.70
  6. Step 6: Final answer
    x = 715,685.55

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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.