Home / 876,876.30-1,315,314.45-778,898.70

Finding the Fourth Proportional to 876,876.30, 1,315,314.45 and 778,898.70

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Solution

The fourth proportional to 876,876.30, 1,315,314.45 and 778,898.70 is: 1,168,348.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,876.30 : 1,315,314.45 = 778,898.70 : x
  2. Step 2: Convert to fraction form
    876,876.30/1,315,314.45 = 778,898.70/x
  3. Step 3: Cross multiply
    876,876.30x = 1,315,314.45 × 778,898.70
  4. Step 4: Simplify right side
    876,876.30x = 1,024,496,715,196.21
  5. Step 5: Solve for x
    x = 1,024,496,715,196.21/876,876.30
  6. Step 6: Final answer
    x = 1,168,348.05

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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.