Home / 571,101.92-788,152.20-316,447.68

Finding the Fourth Proportional to 571,101.92, 788,152.20 and 316,447.68

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Solution

The fourth proportional to 571,101.92, 788,152.20 and 316,447.68 is: 436,715.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,101.92 : 788,152.20 = 316,447.68 : x
  2. Step 2: Convert to fraction form
    571,101.92/788,152.20 = 316,447.68/x
  3. Step 3: Cross multiply
    571,101.92x = 788,152.20 × 316,447.68
  4. Step 4: Simplify right side
    571,101.92x = 249,408,935,176.90
  5. Step 5: Solve for x
    x = 249,408,935,176.90/571,101.92
  6. Step 6: Final answer
    x = 436,715.28

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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.