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Finding the Fourth Proportional to 676,810.71, 933,649.40 and 458,945.71

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Solution

The fourth proportional to 676,810.71, 933,649.40 and 458,945.71 is: 633,108.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,810.71 : 933,649.40 = 458,945.71 : x
  2. Step 2: Convert to fraction form
    676,810.71/933,649.40 = 458,945.71/x
  3. Step 3: Cross multiply
    676,810.71x = 933,649.40 × 458,945.71
  4. Step 4: Simplify right side
    676,810.71x = 428,494,385,587.32
  5. Step 5: Solve for x
    x = 428,494,385,587.32/676,810.71
  6. Step 6: Final answer
    x = 633,108.16

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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.