Home / 811,377.60-1,216,807.20-337,948.80

Finding the Fourth Proportional to 811,377.60, 1,216,807.20 and 337,948.80

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Solution

The fourth proportional to 811,377.60, 1,216,807.20 and 337,948.80 is: 506,815.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,377.60 : 1,216,807.20 = 337,948.80 : x
  2. Step 2: Convert to fraction form
    811,377.60/1,216,807.20 = 337,948.80/x
  3. Step 3: Cross multiply
    811,377.60x = 1,216,807.20 × 337,948.80
  4. Step 4: Simplify right side
    811,377.60x = 411,218,533,071.36
  5. Step 5: Solve for x
    x = 411,218,533,071.36/811,377.60
  6. Step 6: Final answer
    x = 506,815.24

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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.