Home / 704,130.40-1,056,195.60-643,304.80

Finding the Fourth Proportional to 704,130.40, 1,056,195.60 and 643,304.80

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Solution

The fourth proportional to 704,130.40, 1,056,195.60 and 643,304.80 is: 964,957.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,130.40 : 1,056,195.60 = 643,304.80 : x
  2. Step 2: Convert to fraction form
    704,130.40/1,056,195.60 = 643,304.80/x
  3. Step 3: Cross multiply
    704,130.40x = 1,056,195.60 × 643,304.80
  4. Step 4: Simplify right side
    704,130.40x = 679,455,699,218.88
  5. Step 5: Solve for x
    x = 679,455,699,218.88/704,130.40
  6. Step 6: Final answer
    x = 964,957.20

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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.