Home / 738,737.40-1,108,106.10-645,425.40

Finding the Fourth Proportional to 738,737.40, 1,108,106.10 and 645,425.40

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Solution

The fourth proportional to 738,737.40, 1,108,106.10 and 645,425.40 is: 968,138.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,737.40 : 1,108,106.10 = 645,425.40 : x
  2. Step 2: Convert to fraction form
    738,737.40/1,108,106.10 = 645,425.40/x
  3. Step 3: Cross multiply
    738,737.40x = 1,108,106.10 × 645,425.40
  4. Step 4: Simplify right side
    738,737.40x = 715,199,822,834.94
  5. Step 5: Solve for x
    x = 715,199,822,834.94/738,737.40
  6. Step 6: Final answer
    x = 968,138.10

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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.