Home / 899,041.55-1,240,678.17-491,150.21

Finding the Fourth Proportional to 899,041.55, 1,240,678.17 and 491,150.21

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Solution

The fourth proportional to 899,041.55, 1,240,678.17 and 491,150.21 is: 677,787.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,041.55 : 1,240,678.17 = 491,150.21 : x
  2. Step 2: Convert to fraction form
    899,041.55/1,240,678.17 = 491,150.21/x
  3. Step 3: Cross multiply
    899,041.55x = 1,240,678.17 × 491,150.21
  4. Step 4: Simplify right side
    899,041.55x = 609,359,337,534.53
  5. Step 5: Solve for x
    x = 609,359,337,534.53/899,041.55
  6. Step 6: Final answer
    x = 677,787.74

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.