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Finding the Fourth Proportional to 738,438, 1,018,538.58 and 452,099.58

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Solution

The fourth proportional to 738,438, 1,018,538.58 and 452,099.58 is: 623,587.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,438 : 1,018,538.58 = 452,099.58 : x
  2. Step 2: Convert to fraction form
    738,438/1,018,538.58 = 452,099.58/x
  3. Step 3: Cross multiply
    738,438x = 1,018,538.58 × 452,099.58
  4. Step 4: Simplify right side
    738,438x = 460,480,864,231.80
  5. Step 5: Solve for x
    x = 460,480,864,231.80/738,438
  6. Step 6: Final answer
    x = 623,587.71

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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.