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Finding the Fourth Proportional to 586,587.92, 809,491.32 and 318,315.92

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Solution

The fourth proportional to 586,587.92, 809,491.32 and 318,315.92 is: 439,275.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,587.92 : 809,491.32 = 318,315.92 : x
  2. Step 2: Convert to fraction form
    586,587.92/809,491.32 = 318,315.92/x
  3. Step 3: Cross multiply
    586,587.92x = 809,491.32 × 318,315.92
  4. Step 4: Simplify right side
    586,587.92x = 257,673,974,257.81
  5. Step 5: Solve for x
    x = 257,673,974,257.81/586,587.92
  6. Step 6: Final answer
    x = 439,275.96

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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.