Home / 1,223,620.32-1,688,618.16-687,095.52

Finding the Fourth Proportional to 1,223,620.32, 1,688,618.16 and 687,095.52

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Solution

The fourth proportional to 1,223,620.32, 1,688,618.16 and 687,095.52 is: 948,204.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,620.32 : 1,688,618.16 = 687,095.52 : x
  2. Step 2: Convert to fraction form
    1,223,620.32/1,688,618.16 = 687,095.52/x
  3. Step 3: Cross multiply
    1,223,620.32x = 1,688,618.16 × 687,095.52
  4. Step 4: Simplify right side
    1,223,620.32x = 1,160,241,972,726.64
  5. Step 5: Solve for x
    x = 1,160,241,972,726.64/1,223,620.32
  6. Step 6: Final answer
    x = 948,204.24

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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.