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Finding the Fourth Proportional to 599,987.70, 899,981.55 and 550,998.90

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Solution

The fourth proportional to 599,987.70, 899,981.55 and 550,998.90 is: 826,498.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,987.70 : 899,981.55 = 550,998.90 : x
  2. Step 2: Convert to fraction form
    599,987.70/899,981.55 = 550,998.90/x
  3. Step 3: Cross multiply
    599,987.70x = 899,981.55 × 550,998.90
  4. Step 4: Simplify right side
    599,987.70x = 495,888,844,070.30
  5. Step 5: Solve for x
    x = 495,888,844,070.30/599,987.70
  6. Step 6: Final answer
    x = 826,498.35

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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.