Home / 389,045.60-583,484.16-104,729.12

Finding the Fourth Proportional to 389,045.60, 583,484.16 and 104,729.12

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Solution

The fourth proportional to 389,045.60, 583,484.16 and 104,729.12 is: 157,071.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,045.60 : 583,484.16 = 104,729.12 : x
  2. Step 2: Convert to fraction form
    389,045.60/583,484.16 = 104,729.12/x
  3. Step 3: Cross multiply
    389,045.60x = 583,484.16 × 104,729.12
  4. Step 4: Simplify right side
    389,045.60x = 61,107,782,610.74
  5. Step 5: Solve for x
    x = 61,107,782,610.74/389,045.60
  6. Step 6: Final answer
    x = 157,071.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.