Home / 1,643,211.29-2,267,589.69-918,064.46

Finding the Fourth Proportional to 1,643,211.29, 2,267,589.69 and 918,064.46

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Solution

The fourth proportional to 1,643,211.29, 2,267,589.69 and 918,064.46 is: 1,266,905.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,211.29 : 2,267,589.69 = 918,064.46 : x
  2. Step 2: Convert to fraction form
    1,643,211.29/2,267,589.69 = 918,064.46/x
  3. Step 3: Cross multiply
    1,643,211.29x = 2,267,589.69 × 918,064.46
  4. Step 4: Simplify right side
    1,643,211.29x = 2,081,793,492,913.47
  5. Step 5: Solve for x
    x = 2,081,793,492,913.47/1,643,211.29
  6. Step 6: Final answer
    x = 1,266,905.55

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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.