Home / 830,457.40-1,146,142.38-467,951.80

Finding the Fourth Proportional to 830,457.40, 1,146,142.38 and 467,951.80

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Solution

The fourth proportional to 830,457.40, 1,146,142.38 and 467,951.80 is: 645,836.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,457.40 : 1,146,142.38 = 467,951.80 : x
  2. Step 2: Convert to fraction form
    830,457.40/1,146,142.38 = 467,951.80/x
  3. Step 3: Cross multiply
    830,457.40x = 1,146,142.38 × 467,951.80
  4. Step 4: Simplify right side
    830,457.40x = 536,339,389,777.28
  5. Step 5: Solve for x
    x = 536,339,389,777.28/830,457.40
  6. Step 6: Final answer
    x = 645,836.13

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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.