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Finding the Fourth Proportional to 486,638.17, 666,683.15 and 468,444.22

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Solution

The fourth proportional to 486,638.17, 666,683.15 and 468,444.22 is: 641,757.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,638.17 : 666,683.15 = 468,444.22 : x
  2. Step 2: Convert to fraction form
    486,638.17/666,683.15 = 468,444.22/x
  3. Step 3: Cross multiply
    486,638.17x = 666,683.15 × 468,444.22
  4. Step 4: Simplify right side
    486,638.17x = 312,303,868,188.89
  5. Step 5: Solve for x
    x = 312,303,868,188.89/486,638.17
  6. Step 6: Final answer
    x = 641,757.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.