Home / 712,292.78-1,068,639.42-286,127.84

Finding the Fourth Proportional to 712,292.78, 1,068,639.42 and 286,127.84

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Solution

The fourth proportional to 712,292.78, 1,068,639.42 and 286,127.84 is: 429,272.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,292.78 : 1,068,639.42 = 286,127.84 : x
  2. Step 2: Convert to fraction form
    712,292.78/1,068,639.42 = 286,127.84/x
  3. Step 3: Cross multiply
    712,292.78x = 1,068,639.42 × 286,127.84
  4. Step 4: Simplify right side
    712,292.78x = 305,767,488,983.45
  5. Step 5: Solve for x
    x = 305,767,488,983.45/712,292.78
  6. Step 6: Final answer
    x = 429,272.20

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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.