Home / 723,704.80-1,086,248.40-618,642.40

Finding the Fourth Proportional to 723,704.80, 1,086,248.40 and 618,642.40

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Solution

The fourth proportional to 723,704.80, 1,086,248.40 and 618,642.40 is: 928,554.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,704.80 : 1,086,248.40 = 618,642.40 : x
  2. Step 2: Convert to fraction form
    723,704.80/1,086,248.40 = 618,642.40/x
  3. Step 3: Cross multiply
    723,704.80x = 1,086,248.40 × 618,642.40
  4. Step 4: Simplify right side
    723,704.80x = 671,999,317,172.16
  5. Step 5: Solve for x
    x = 671,999,317,172.16/723,704.80
  6. Step 6: Final answer
    x = 928,554.46

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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.