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Finding the Fourth Proportional to 662,903.48, 914,421.94 and 417,792.20

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Solution

The fourth proportional to 662,903.48, 914,421.94 and 417,792.20 is: 576,310.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,903.48 : 914,421.94 = 417,792.20 : x
  2. Step 2: Convert to fraction form
    662,903.48/914,421.94 = 417,792.20/x
  3. Step 3: Cross multiply
    662,903.48x = 914,421.94 × 417,792.20
  4. Step 4: Simplify right side
    662,903.48x = 382,038,354,040.87
  5. Step 5: Solve for x
    x = 382,038,354,040.87/662,903.48
  6. Step 6: Final answer
    x = 576,310.68

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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.