Home / 1,121,234.40-1,548,590.64-816,667.68

Finding the Fourth Proportional to 1,121,234.40, 1,548,590.64 and 816,667.68

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Solution

The fourth proportional to 1,121,234.40, 1,548,590.64 and 816,667.68 is: 1,127,938.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,234.40 : 1,548,590.64 = 816,667.68 : x
  2. Step 2: Convert to fraction form
    1,121,234.40/1,548,590.64 = 816,667.68/x
  3. Step 3: Cross multiply
    1,121,234.40x = 1,548,590.64 × 816,667.68
  4. Step 4: Simplify right side
    1,121,234.40x = 1,264,683,925,238.52
  5. Step 5: Solve for x
    x = 1,264,683,925,238.52/1,121,234.40
  6. Step 6: Final answer
    x = 1,127,938.93

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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.