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Finding the Fourth Proportional to 660,587.76, 990,881.60 and 187,277.22

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Solution

The fourth proportional to 660,587.76, 990,881.60 and 187,277.22 is: 280,915.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,587.76 : 990,881.60 = 187,277.22 : x
  2. Step 2: Convert to fraction form
    660,587.76/990,881.60 = 187,277.22/x
  3. Step 3: Cross multiply
    660,587.76x = 990,881.60 × 187,277.22
  4. Step 4: Simplify right side
    660,587.76x = 185,569,550,460.77
  5. Step 5: Solve for x
    x = 185,569,550,460.77/660,587.76
  6. Step 6: Final answer
    x = 280,915.82

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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.