Home / 984,557.12-1,358,728.80-554,855.36

Finding the Fourth Proportional to 984,557.12, 1,358,728.80 and 554,855.36

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Solution

The fourth proportional to 984,557.12, 1,358,728.80 and 554,855.36 is: 765,722.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    984,557.12 : 1,358,728.80 = 554,855.36 : x
  2. Step 2: Convert to fraction form
    984,557.12/1,358,728.80 = 554,855.36/x
  3. Step 3: Cross multiply
    984,557.12x = 1,358,728.80 × 554,855.36
  4. Step 4: Simplify right side
    984,557.12x = 753,897,957,466.37
  5. Step 5: Solve for x
    x = 753,897,957,466.37/984,557.12
  6. Step 6: Final answer
    x = 765,722.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.