Home / 1,078,451.47-1,488,394.85-619,565.20

Finding the Fourth Proportional to 1,078,451.47, 1,488,394.85 and 619,565.20

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Solution

The fourth proportional to 1,078,451.47, 1,488,394.85 and 619,565.20 is: 855,075.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,451.47 : 1,488,394.85 = 619,565.20 : x
  2. Step 2: Convert to fraction form
    1,078,451.47/1,488,394.85 = 619,565.20/x
  3. Step 3: Cross multiply
    1,078,451.47x = 1,488,394.85 × 619,565.20
  4. Step 4: Simplify right side
    1,078,451.47x = 922,157,654,472.63
  5. Step 5: Solve for x
    x = 922,157,654,472.63/1,078,451.47
  6. Step 6: Final answer
    x = 855,075.71

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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.