Home / 778,897.40-1,168,346.10-479,715.80

Finding the Fourth Proportional to 778,897.40, 1,168,346.10 and 479,715.80

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Solution

The fourth proportional to 778,897.40, 1,168,346.10 and 479,715.80 is: 719,573.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,897.40 : 1,168,346.10 = 479,715.80 : x
  2. Step 2: Convert to fraction form
    778,897.40/1,168,346.10 = 479,715.80/x
  3. Step 3: Cross multiply
    778,897.40x = 1,168,346.10 × 479,715.80
  4. Step 4: Simplify right side
    778,897.40x = 560,474,084,038.38
  5. Step 5: Solve for x
    x = 560,474,084,038.38/778,897.40
  6. Step 6: Final answer
    x = 719,573.70

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Double scale
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Similar ratio
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1.5x scale

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.