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Finding the Fourth Proportional to 666,368.60, 999,552.15 and 217,088.82

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Solution

The fourth proportional to 666,368.60, 999,552.15 and 217,088.82 is: 325,632.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,368.60 : 999,552.15 = 217,088.82 : x
  2. Step 2: Convert to fraction form
    666,368.60/999,552.15 = 217,088.82/x
  3. Step 3: Cross multiply
    666,368.60x = 999,552.15 × 217,088.82
  4. Step 4: Simplify right side
    666,368.60x = 216,991,596,771.96
  5. Step 5: Solve for x
    x = 216,991,596,771.96/666,368.60
  6. Step 6: Final answer
    x = 325,632.99

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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.