Home / 927,720.40-1,390,916.40-358,614.40

Finding the Fourth Proportional to 927,720.40, 1,390,916.40 and 358,614.40

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Solution

The fourth proportional to 927,720.40, 1,390,916.40 and 358,614.40 is: 537,664.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,720.40 : 1,390,916.40 = 358,614.40 : x
  2. Step 2: Convert to fraction form
    927,720.40/1,390,916.40 = 358,614.40/x
  3. Step 3: Cross multiply
    927,720.40x = 1,390,916.40 × 358,614.40
  4. Step 4: Simplify right side
    927,720.40x = 498,802,650,236.16
  5. Step 5: Solve for x
    x = 498,802,650,236.16/927,720.40
  6. Step 6: Final answer
    x = 537,664.85

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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.