Home / 710,310.28-1,065,730.12-426,204.74

Finding the Fourth Proportional to 710,310.28, 1,065,730.12 and 426,204.74

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Solution

The fourth proportional to 710,310.28, 1,065,730.12 and 426,204.74 is: 639,465.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,310.28 : 1,065,730.12 = 426,204.74 : x
  2. Step 2: Convert to fraction form
    710,310.28/1,065,730.12 = 426,204.74/x
  3. Step 3: Cross multiply
    710,310.28x = 1,065,730.12 × 426,204.74
  4. Step 4: Simplify right side
    710,310.28x = 454,219,228,704.77
  5. Step 5: Solve for x
    x = 454,219,228,704.77/710,310.28
  6. Step 6: Final answer
    x = 639,465.94

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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.