Home / 1,121,043.72-1,547,073.02-611,778.90

Finding the Fourth Proportional to 1,121,043.72, 1,547,073.02 and 611,778.90

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Solution

The fourth proportional to 1,121,043.72, 1,547,073.02 and 611,778.90 is: 844,272.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,043.72 : 1,547,073.02 = 611,778.90 : x
  2. Step 2: Convert to fraction form
    1,121,043.72/1,547,073.02 = 611,778.90/x
  3. Step 3: Cross multiply
    1,121,043.72x = 1,547,073.02 × 611,778.90
  4. Step 4: Simplify right side
    1,121,043.72x = 946,466,630,395.28
  5. Step 5: Solve for x
    x = 946,466,630,395.28/1,121,043.72
  6. Step 6: Final answer
    x = 844,272.72

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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.