Home / 660,461.04-911,439.74-374,036.88

Finding the Fourth Proportional to 660,461.04, 911,439.74 and 374,036.88

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Solution

The fourth proportional to 660,461.04, 911,439.74 and 374,036.88 is: 516,172.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,461.04 : 911,439.74 = 374,036.88 : x
  2. Step 2: Convert to fraction form
    660,461.04/911,439.74 = 374,036.88/x
  3. Step 3: Cross multiply
    660,461.04x = 911,439.74 × 374,036.88
  4. Step 4: Simplify right side
    660,461.04x = 340,912,076,657.61
  5. Step 5: Solve for x
    x = 340,912,076,657.61/660,461.04
  6. Step 6: Final answer
    x = 516,172.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.