Home / 1,161,905.48-1,603,397.54-645,646.04

Finding the Fourth Proportional to 1,161,905.48, 1,603,397.54 and 645,646.04

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Solution

The fourth proportional to 1,161,905.48, 1,603,397.54 and 645,646.04 is: 890,973.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,161,905.48 : 1,603,397.54 = 645,646.04 : x
  2. Step 2: Convert to fraction form
    1,161,905.48/1,603,397.54 = 645,646.04/x
  3. Step 3: Cross multiply
    1,161,905.48x = 1,603,397.54 × 645,646.04
  4. Step 4: Simplify right side
    1,161,905.48x = 1,035,227,272,246.74
  5. Step 5: Solve for x
    x = 1,035,227,272,246.74/1,161,905.48
  6. Step 6: Final answer
    x = 890,973.74

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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.