Home / 508,904.40-763,648.20-193,587.60

Finding the Fourth Proportional to 508,904.40, 763,648.20 and 193,587.60

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Solution

The fourth proportional to 508,904.40, 763,648.20 and 193,587.60 is: 290,492.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,904.40 : 763,648.20 = 193,587.60 : x
  2. Step 2: Convert to fraction form
    508,904.40/763,648.20 = 193,587.60/x
  3. Step 3: Cross multiply
    508,904.40x = 763,648.20 × 193,587.60
  4. Step 4: Simplify right side
    508,904.40x = 147,832,822,282.32
  5. Step 5: Solve for x
    x = 147,832,822,282.32/508,904.40
  6. Step 6: Final answer
    x = 290,492.32

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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.