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Finding the Fourth Proportional to 676,810.79, 933,998.90 and 375,004.79

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Solution

The fourth proportional to 676,810.79, 933,998.90 and 375,004.79 is: 517,506.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,810.79 : 933,998.90 = 375,004.79 : x
  2. Step 2: Convert to fraction form
    676,810.79/933,998.90 = 375,004.79/x
  3. Step 3: Cross multiply
    676,810.79x = 933,998.90 × 375,004.79
  4. Step 4: Simplify right side
    676,810.79x = 350,254,056,684.74
  5. Step 5: Solve for x
    x = 350,254,056,684.74/676,810.79
  6. Step 6: Final answer
    x = 517,506.61

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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.