Home / 1,385,320.32-1,911,723.92-773,483.49

Finding the Fourth Proportional to 1,385,320.32, 1,911,723.92 and 773,483.49

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Solution

The fourth proportional to 1,385,320.32, 1,911,723.92 and 773,483.49 is: 1,067,397.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,320.32 : 1,911,723.92 = 773,483.49 : x
  2. Step 2: Convert to fraction form
    1,385,320.32/1,911,723.92 = 773,483.49/x
  3. Step 3: Cross multiply
    1,385,320.32x = 1,911,723.92 × 773,483.49
  4. Step 4: Simplify right side
    1,385,320.32x = 1,478,686,885,690.66
  5. Step 5: Solve for x
    x = 1,478,686,885,690.66/1,385,320.32
  6. Step 6: Final answer
    x = 1,067,397.10

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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.