Home / 1,223,155.08-1,687,976.64-679,341.24

Finding the Fourth Proportional to 1,223,155.08, 1,687,976.64 and 679,341.24

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Solution

The fourth proportional to 1,223,155.08, 1,687,976.64 and 679,341.24 is: 937,503.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,155.08 : 1,687,976.64 = 679,341.24 : x
  2. Step 2: Convert to fraction form
    1,223,155.08/1,687,976.64 = 679,341.24/x
  3. Step 3: Cross multiply
    1,223,155.08x = 1,687,976.64 × 679,341.24
  4. Step 4: Simplify right side
    1,223,155.08x = 1,146,712,143,708.63
  5. Step 5: Solve for x
    x = 1,146,712,143,708.63/1,223,155.08
  6. Step 6: Final answer
    x = 937,503.48

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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.