Home / 712,304.80-1,068,657.48-286,139.84

Finding the Fourth Proportional to 712,304.80, 1,068,657.48 and 286,139.84

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Solution

The fourth proportional to 712,304.80, 1,068,657.48 and 286,139.84 is: 429,290.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,304.80 : 1,068,657.48 = 286,139.84 : x
  2. Step 2: Convert to fraction form
    712,304.80/1,068,657.48 = 286,139.84/x
  3. Step 3: Cross multiply
    712,304.80x = 1,068,657.48 × 286,139.84
  4. Step 4: Simplify right side
    712,304.80x = 305,785,480,342.00
  5. Step 5: Solve for x
    x = 305,785,480,342.00/712,304.80
  6. Step 6: Final answer
    x = 429,290.21

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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.