Home / 578,102.40-865,987.20-578,102.40

Finding the Fourth Proportional to 578,102.40, 865,987.20 and 578,102.40

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Solution

The fourth proportional to 578,102.40, 865,987.20 and 578,102.40 is: 865,987.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,102.40 : 865,987.20 = 578,102.40 : x
  2. Step 2: Convert to fraction form
    578,102.40/865,987.20 = 578,102.40/x
  3. Step 3: Cross multiply
    578,102.40x = 865,987.20 × 578,102.40
  4. Step 4: Simplify right side
    578,102.40x = 500,629,278,689.28
  5. Step 5: Solve for x
    x = 500,629,278,689.28/578,102.40
  6. Step 6: Final answer
    x = 865,987.20

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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.