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Finding the Fourth Proportional to 718,670.40, 1,077,854.40 and 363,350.40

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Solution

The fourth proportional to 718,670.40, 1,077,854.40 and 363,350.40 is: 544,949.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,670.40 : 1,077,854.40 = 363,350.40 : x
  2. Step 2: Convert to fraction form
    718,670.40/1,077,854.40 = 363,350.40/x
  3. Step 3: Cross multiply
    718,670.40x = 1,077,854.40 × 363,350.40
  4. Step 4: Simplify right side
    718,670.40x = 391,638,827,381.76
  5. Step 5: Solve for x
    x = 391,638,827,381.76/718,670.40
  6. Step 6: Final answer
    x = 544,949.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.