Home / 718,916.61-992,098.08-396,629.31

Finding the Fourth Proportional to 718,916.61, 992,098.08 and 396,629.31

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Solution

The fourth proportional to 718,916.61, 992,098.08 and 396,629.31 is: 547,344.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,916.61 : 992,098.08 = 396,629.31 : x
  2. Step 2: Convert to fraction form
    718,916.61/992,098.08 = 396,629.31/x
  3. Step 3: Cross multiply
    718,916.61x = 992,098.08 × 396,629.31
  4. Step 4: Simplify right side
    718,916.61x = 393,495,176,922.73
  5. Step 5: Solve for x
    x = 393,495,176,922.73/718,916.61
  6. Step 6: Final answer
    x = 547,344.67

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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.