Home / 762,946.80-1,144,420.20-230,412.30

Finding the Fourth Proportional to 762,946.80, 1,144,420.20 and 230,412.30

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Solution

The fourth proportional to 762,946.80, 1,144,420.20 and 230,412.30 is: 345,618.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,946.80 : 1,144,420.20 = 230,412.30 : x
  2. Step 2: Convert to fraction form
    762,946.80/1,144,420.20 = 230,412.30/x
  3. Step 3: Cross multiply
    762,946.80x = 1,144,420.20 × 230,412.30
  4. Step 4: Simplify right side
    762,946.80x = 263,688,490,448.46
  5. Step 5: Solve for x
    x = 263,688,490,448.46/762,946.80
  6. Step 6: Final answer
    x = 345,618.45

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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.