Home / 1,135,128.90-1,566,488.52-625,849.50

Finding the Fourth Proportional to 1,135,128.90, 1,566,488.52 and 625,849.50

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Solution

The fourth proportional to 1,135,128.90, 1,566,488.52 and 625,849.50 is: 863,678.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,135,128.90 : 1,566,488.52 = 625,849.50 : x
  2. Step 2: Convert to fraction form
    1,135,128.90/1,566,488.52 = 625,849.50/x
  3. Step 3: Cross multiply
    1,135,128.90x = 1,566,488.52 × 625,849.50
  4. Step 4: Simplify right side
    1,135,128.90x = 980,386,056,997.74
  5. Step 5: Solve for x
    x = 980,386,056,997.74/1,135,128.90
  6. Step 6: Final answer
    x = 863,678.18

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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.