Home / 903,518.67-1,355,691.87-391,340.46

Finding the Fourth Proportional to 903,518.67, 1,355,691.87 and 391,340.46

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Solution

The fourth proportional to 903,518.67, 1,355,691.87 and 391,340.46 is: 587,189.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,518.67 : 1,355,691.87 = 391,340.46 : x
  2. Step 2: Convert to fraction form
    903,518.67/1,355,691.87 = 391,340.46/x
  3. Step 3: Cross multiply
    903,518.67x = 1,355,691.87 × 391,340.46
  4. Step 4: Simplify right side
    903,518.67x = 530,537,080,024.06
  5. Step 5: Solve for x
    x = 530,537,080,024.06/903,518.67
  6. Step 6: Final answer
    x = 587,189.95

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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.