Home / 525,612.20-788,418.30-304,428.20

Finding the Fourth Proportional to 525,612.20, 788,418.30 and 304,428.20

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Solution

The fourth proportional to 525,612.20, 788,418.30 and 304,428.20 is: 456,642.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,612.20 : 788,418.30 = 304,428.20 : x
  2. Step 2: Convert to fraction form
    525,612.20/788,418.30 = 304,428.20/x
  3. Step 3: Cross multiply
    525,612.20x = 788,418.30 × 304,428.20
  4. Step 4: Simplify right side
    525,612.20x = 240,016,763,916.06
  5. Step 5: Solve for x
    x = 240,016,763,916.06/525,612.20
  6. Step 6: Final answer
    x = 456,642.30

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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.