Home / 761,614.56-1,142,660.64-458,339.62

Finding the Fourth Proportional to 761,614.56, 1,142,660.64 and 458,339.62

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Solution

The fourth proportional to 761,614.56, 1,142,660.64 and 458,339.62 is: 687,653.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,614.56 : 1,142,660.64 = 458,339.62 : x
  2. Step 2: Convert to fraction form
    761,614.56/1,142,660.64 = 458,339.62/x
  3. Step 3: Cross multiply
    761,614.56x = 1,142,660.64 × 458,339.62
  4. Step 4: Simplify right side
    761,614.56x = 523,726,643,526.56
  5. Step 5: Solve for x
    x = 523,726,643,526.56/761,614.56
  6. Step 6: Final answer
    x = 687,653.14

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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.