Home / 830,979.12-1,146,717.90-468,478.20

Finding the Fourth Proportional to 830,979.12, 1,146,717.90 and 468,478.20

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Solution

The fourth proportional to 830,979.12, 1,146,717.90 and 468,478.20 is: 646,481.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,979.12 : 1,146,717.90 = 468,478.20 : x
  2. Step 2: Convert to fraction form
    830,979.12/1,146,717.90 = 468,478.20/x
  3. Step 3: Cross multiply
    830,979.12x = 1,146,717.90 × 468,478.20
  4. Step 4: Simplify right side
    830,979.12x = 537,212,337,699.78
  5. Step 5: Solve for x
    x = 537,212,337,699.78/830,979.12
  6. Step 6: Final answer
    x = 646,481.15

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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.