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Finding the Fourth Proportional to 651,271.28, 898,305.63 and 458,088.71

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Solution

The fourth proportional to 651,271.28, 898,305.63 and 458,088.71 is: 631,846.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,271.28 : 898,305.63 = 458,088.71 : x
  2. Step 2: Convert to fraction form
    651,271.28/898,305.63 = 458,088.71/x
  3. Step 3: Cross multiply
    651,271.28x = 898,305.63 × 458,088.71
  4. Step 4: Simplify right side
    651,271.28x = 411,503,662,740.91
  5. Step 5: Solve for x
    x = 411,503,662,740.91/651,271.28
  6. Step 6: Final answer
    x = 631,846.79

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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.