Home / 745,502.61-1,028,732.94-418,797.87

Finding the Fourth Proportional to 745,502.61, 1,028,732.94 and 418,797.87

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Solution

The fourth proportional to 745,502.61, 1,028,732.94 and 418,797.87 is: 577,906.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,502.61 : 1,028,732.94 = 418,797.87 : x
  2. Step 2: Convert to fraction form
    745,502.61/1,028,732.94 = 418,797.87/x
  3. Step 3: Cross multiply
    745,502.61x = 1,028,732.94 × 418,797.87
  4. Step 4: Simplify right side
    745,502.61x = 430,831,164,070.84
  5. Step 5: Solve for x
    x = 430,831,164,070.84/745,502.61
  6. Step 6: Final answer
    x = 577,906.98

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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.