Home / 1,218,535.79-1,681,631.95-674,671.57

Finding the Fourth Proportional to 1,218,535.79, 1,681,631.95 and 674,671.57

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Solution

The fourth proportional to 1,218,535.79, 1,681,631.95 and 674,671.57 is: 931,075.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,535.79 : 1,681,631.95 = 674,671.57 : x
  2. Step 2: Convert to fraction form
    1,218,535.79/1,681,631.95 = 674,671.57/x
  3. Step 3: Cross multiply
    1,218,535.79x = 1,681,631.95 × 674,671.57
  4. Step 4: Simplify right side
    1,218,535.79x = 1,134,549,267,868.66
  5. Step 5: Solve for x
    x = 1,134,549,267,868.66/1,218,535.79
  6. Step 6: Final answer
    x = 931,075.87

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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.