Home / 646,011.38-891,495.70-359,599.12

Finding the Fourth Proportional to 646,011.38, 891,495.70 and 359,599.12

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Solution

The fourth proportional to 646,011.38, 891,495.70 and 359,599.12 is: 496,246.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,011.38 : 891,495.70 = 359,599.12 : x
  2. Step 2: Convert to fraction form
    646,011.38/891,495.70 = 359,599.12/x
  3. Step 3: Cross multiply
    646,011.38x = 891,495.70 × 359,599.12
  4. Step 4: Simplify right side
    646,011.38x = 320,581,069,419.16
  5. Step 5: Solve for x
    x = 320,581,069,419.16/646,011.38
  6. Step 6: Final answer
    x = 496,246.79

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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.