Home / 830,402.10-1,245,603.15-531,803.70

Finding the Fourth Proportional to 830,402.10, 1,245,603.15 and 531,803.70

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Solution

The fourth proportional to 830,402.10, 1,245,603.15 and 531,803.70 is: 797,705.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,402.10 : 1,245,603.15 = 531,803.70 : x
  2. Step 2: Convert to fraction form
    830,402.10/1,245,603.15 = 531,803.70/x
  3. Step 3: Cross multiply
    830,402.10x = 1,245,603.15 × 531,803.70
  4. Step 4: Simplify right side
    830,402.10x = 662,416,363,901.66
  5. Step 5: Solve for x
    x = 662,416,363,901.66/830,402.10
  6. Step 6: Final answer
    x = 797,705.55

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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.