Home / 1,643,549.90-2,268,094.05-918,398.35

Finding the Fourth Proportional to 1,643,549.90, 2,268,094.05 and 918,398.35

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Solution

The fourth proportional to 1,643,549.90, 2,268,094.05 and 918,398.35 is: 1,267,387.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,549.90 : 2,268,094.05 = 918,398.35 : x
  2. Step 2: Convert to fraction form
    1,643,549.90/2,268,094.05 = 918,398.35/x
  3. Step 3: Cross multiply
    1,643,549.90x = 2,268,094.05 × 918,398.35
  4. Step 4: Simplify right side
    1,643,549.90x = 2,083,013,833,164.82
  5. Step 5: Solve for x
    x = 2,083,013,833,164.82/1,643,549.90
  6. Step 6: Final answer
    x = 1,267,387.03

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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.