Home / 1,126,032.60-1,554,036.72-642,670.98

Finding the Fourth Proportional to 1,126,032.60, 1,554,036.72 and 642,670.98

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Solution

The fourth proportional to 1,126,032.60, 1,554,036.72 and 642,670.98 is: 886,949.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,032.60 : 1,554,036.72 = 642,670.98 : x
  2. Step 2: Convert to fraction form
    1,126,032.60/1,554,036.72 = 642,670.98/x
  3. Step 3: Cross multiply
    1,126,032.60x = 1,554,036.72 × 642,670.98
  4. Step 4: Simplify right side
    1,126,032.60x = 998,734,301,798.39
  5. Step 5: Solve for x
    x = 998,734,301,798.39/1,126,032.60
  6. Step 6: Final answer
    x = 886,949.72

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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.