Home / 670,706.46-1,006,059.56-390,026.88

Finding the Fourth Proportional to 670,706.46, 1,006,059.56 and 390,026.88

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Solution

The fourth proportional to 670,706.46, 1,006,059.56 and 390,026.88 is: 585,040.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,706.46 : 1,006,059.56 = 390,026.88 : x
  2. Step 2: Convert to fraction form
    670,706.46/1,006,059.56 = 390,026.88/x
  3. Step 3: Cross multiply
    670,706.46x = 1,006,059.56 × 390,026.88
  4. Step 4: Simplify right side
    670,706.46x = 392,390,269,330.84
  5. Step 5: Solve for x
    x = 392,390,269,330.84/670,706.46
  6. Step 6: Final answer
    x = 585,040.24

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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.