Home / 782,330.71-1,079,579.04-480,466.39

Finding the Fourth Proportional to 782,330.71, 1,079,579.04 and 480,466.39

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Solution

The fourth proportional to 782,330.71, 1,079,579.04 and 480,466.39 is: 663,020.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,330.71 : 1,079,579.04 = 480,466.39 : x
  2. Step 2: Convert to fraction form
    782,330.71/1,079,579.04 = 480,466.39/x
  3. Step 3: Cross multiply
    782,330.71x = 1,079,579.04 × 480,466.39
  4. Step 4: Simplify right side
    782,330.71x = 518,701,444,068.47
  5. Step 5: Solve for x
    x = 518,701,444,068.47/782,330.71
  6. Step 6: Final answer
    x = 663,020.69

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.