Home / 1,561,570.80-2,342,356.20-763,364.40

Finding the Fourth Proportional to 1,561,570.80, 2,342,356.20 and 763,364.40

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Solution

The fourth proportional to 1,561,570.80, 2,342,356.20 and 763,364.40 is: 1,145,046.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,561,570.80 : 2,342,356.20 = 763,364.40 : x
  2. Step 2: Convert to fraction form
    1,561,570.80/2,342,356.20 = 763,364.40/x
  3. Step 3: Cross multiply
    1,561,570.80x = 2,342,356.20 × 763,364.40
  4. Step 4: Simplify right side
    1,561,570.80x = 1,788,071,335,199.28
  5. Step 5: Solve for x
    x = 1,788,071,335,199.28/1,561,570.80
  6. Step 6: Final answer
    x = 1,145,046.60

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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.