Home / 927,123.20-1,390,724.28-328,089.32

Finding the Fourth Proportional to 927,123.20, 1,390,724.28 and 328,089.32

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Solution

The fourth proportional to 927,123.20, 1,390,724.28 and 328,089.32 is: 492,147.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,123.20 : 1,390,724.28 = 328,089.32 : x
  2. Step 2: Convert to fraction form
    927,123.20/1,390,724.28 = 328,089.32/x
  3. Step 3: Cross multiply
    927,123.20x = 1,390,724.28 × 328,089.32
  4. Step 4: Simplify right side
    927,123.20x = 456,281,783,332.69
  5. Step 5: Solve for x
    x = 456,281,783,332.69/927,123.20
  6. Step 6: Final answer
    x = 492,147.95

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Double scale
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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.