Home / 648,966.11-895,819.55-488,288.24

Finding the Fourth Proportional to 648,966.11, 895,819.55 and 488,288.24

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Solution

The fourth proportional to 648,966.11, 895,819.55 and 488,288.24 is: 674,023.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,966.11 : 895,819.55 = 488,288.24 : x
  2. Step 2: Convert to fraction form
    648,966.11/895,819.55 = 488,288.24/x
  3. Step 3: Cross multiply
    648,966.11x = 895,819.55 × 488,288.24
  4. Step 4: Simplify right side
    648,966.11x = 437,418,144,506.55
  5. Step 5: Solve for x
    x = 437,418,144,506.55/648,966.11
  6. Step 6: Final answer
    x = 674,023.10

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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.