Home / 1,102,245.76-1,520,994.08-618,700.08

Finding the Fourth Proportional to 1,102,245.76, 1,520,994.08 and 618,700.08

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Solution

The fourth proportional to 1,102,245.76, 1,520,994.08 and 618,700.08 is: 853,747.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,245.76 : 1,520,994.08 = 618,700.08 : x
  2. Step 2: Convert to fraction form
    1,102,245.76/1,520,994.08 = 618,700.08/x
  3. Step 3: Cross multiply
    1,102,245.76x = 1,520,994.08 × 618,700.08
  4. Step 4: Simplify right side
    1,102,245.76x = 941,039,158,975.53
  5. Step 5: Solve for x
    x = 941,039,158,975.53/1,102,245.76
  6. Step 6: Final answer
    x = 853,747.13

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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.