Home / 1,223,471.25-1,688,437.71-679,648.32

Finding the Fourth Proportional to 1,223,471.25, 1,688,437.71 and 679,648.32

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Solution

The fourth proportional to 1,223,471.25, 1,688,437.71 and 679,648.32 is: 937,941.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,471.25 : 1,688,437.71 = 679,648.32 : x
  2. Step 2: Convert to fraction form
    1,223,471.25/1,688,437.71 = 679,648.32/x
  3. Step 3: Cross multiply
    1,223,471.25x = 1,688,437.71 × 679,648.32
  4. Step 4: Simplify right side
    1,223,471.25x = 1,147,543,853,026.15
  5. Step 5: Solve for x
    x = 1,147,543,853,026.15/1,223,471.25
  6. Step 6: Final answer
    x = 937,941.00

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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.