Home / 702,931.60-1,051,939.80-643,949.20

Finding the Fourth Proportional to 702,931.60, 1,051,939.80 and 643,949.20

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Solution

The fourth proportional to 702,931.60, 1,051,939.80 and 643,949.20 is: 963,672.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,931.60 : 1,051,939.80 = 643,949.20 : x
  2. Step 2: Convert to fraction form
    702,931.60/1,051,939.80 = 643,949.20/x
  3. Step 3: Cross multiply
    702,931.60x = 1,051,939.80 × 643,949.20
  4. Step 4: Simplify right side
    702,931.60x = 677,395,792,658.16
  5. Step 5: Solve for x
    x = 677,395,792,658.16/702,931.60
  6. Step 6: Final answer
    x = 963,672.42

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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.