Home / 1,555,646.40-2,146,791.60-840,254.40

Finding the Fourth Proportional to 1,555,646.40, 2,146,791.60 and 840,254.40

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Solution

The fourth proportional to 1,555,646.40, 2,146,791.60 and 840,254.40 is: 1,159,550.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,646.40 : 2,146,791.60 = 840,254.40 : x
  2. Step 2: Convert to fraction form
    1,555,646.40/2,146,791.60 = 840,254.40/x
  3. Step 3: Cross multiply
    1,555,646.40x = 2,146,791.60 × 840,254.40
  4. Step 4: Simplify right side
    1,555,646.40x = 1,803,851,087,783.04
  5. Step 5: Solve for x
    x = 1,803,851,087,783.04/1,555,646.40
  6. Step 6: Final answer
    x = 1,159,550.84

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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.