Home / 714,819.06-1,077,248.88-643,830.66

Finding the Fourth Proportional to 714,819.06, 1,077,248.88 and 643,830.66

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Solution

The fourth proportional to 714,819.06, 1,077,248.88 and 643,830.66 is: 970,267.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,819.06 : 1,077,248.88 = 643,830.66 : x
  2. Step 2: Convert to fraction form
    714,819.06/1,077,248.88 = 643,830.66/x
  3. Step 3: Cross multiply
    714,819.06x = 1,077,248.88 × 643,830.66
  4. Step 4: Simplify right side
    714,819.06x = 693,565,857,394.66
  5. Step 5: Solve for x
    x = 693,565,857,394.66/714,819.06
  6. Step 6: Final answer
    x = 970,267.72

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.