Home / 778,863.60-1,168,295.40-478,369.80

Finding the Fourth Proportional to 778,863.60, 1,168,295.40 and 478,369.80

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Solution

The fourth proportional to 778,863.60, 1,168,295.40 and 478,369.80 is: 717,554.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,863.60 : 1,168,295.40 = 478,369.80 : x
  2. Step 2: Convert to fraction form
    778,863.60/1,168,295.40 = 478,369.80/x
  3. Step 3: Cross multiply
    778,863.60x = 1,168,295.40 × 478,369.80
  4. Step 4: Simplify right side
    778,863.60x = 558,877,236,838.92
  5. Step 5: Solve for x
    x = 558,877,236,838.92/778,863.60
  6. Step 6: Final answer
    x = 717,554.70

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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.