Home / 786,618.30-1,180,814.40-520,897.80

Finding the Fourth Proportional to 786,618.30, 1,180,814.40 and 520,897.80

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Solution

The fourth proportional to 786,618.30, 1,180,814.40 and 520,897.80 is: 781,934.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,618.30 : 1,180,814.40 = 520,897.80 : x
  2. Step 2: Convert to fraction form
    786,618.30/1,180,814.40 = 520,897.80/x
  3. Step 3: Cross multiply
    786,618.30x = 1,180,814.40 × 520,897.80
  4. Step 4: Simplify right side
    786,618.30x = 615,083,623,168.32
  5. Step 5: Solve for x
    x = 615,083,623,168.32/786,618.30
  6. Step 6: Final answer
    x = 781,934.04

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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.