Home / 763,102.32-1,144,826.28-407,929.20

Finding the Fourth Proportional to 763,102.32, 1,144,826.28 and 407,929.20

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Solution

The fourth proportional to 763,102.32, 1,144,826.28 and 407,929.20 is: 611,986.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,102.32 : 1,144,826.28 = 407,929.20 : x
  2. Step 2: Convert to fraction form
    763,102.32/1,144,826.28 = 407,929.20/x
  3. Step 3: Cross multiply
    763,102.32x = 1,144,826.28 × 407,929.20
  4. Step 4: Simplify right side
    763,102.32x = 467,008,068,539.38
  5. Step 5: Solve for x
    x = 467,008,068,539.38/763,102.32
  6. Step 6: Final answer
    x = 611,986.17

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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.