Home / 1,069,756.20-1,476,070.02-687,695.40

Finding the Fourth Proportional to 1,069,756.20, 1,476,070.02 and 687,695.40

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Solution

The fourth proportional to 1,069,756.20, 1,476,070.02 and 687,695.40 is: 948,895.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,756.20 : 1,476,070.02 = 687,695.40 : x
  2. Step 2: Convert to fraction form
    1,069,756.20/1,476,070.02 = 687,695.40/x
  3. Step 3: Cross multiply
    1,069,756.20x = 1,476,070.02 × 687,695.40
  4. Step 4: Simplify right side
    1,069,756.20x = 1,015,086,562,831.91
  5. Step 5: Solve for x
    x = 1,015,086,562,831.91/1,069,756.20
  6. Step 6: Final answer
    x = 948,895.24

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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.