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Finding the Fourth Proportional to 679,510.83, 937,725.54 and 373,592.40

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Solution

The fourth proportional to 679,510.83, 937,725.54 and 373,592.40 is: 515,557.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,510.83 : 937,725.54 = 373,592.40 : x
  2. Step 2: Convert to fraction form
    679,510.83/937,725.54 = 373,592.40/x
  3. Step 3: Cross multiply
    679,510.83x = 937,725.54 × 373,592.40
  4. Step 4: Simplify right side
    679,510.83x = 350,327,135,029.90
  5. Step 5: Solve for x
    x = 350,327,135,029.90/679,510.83
  6. Step 6: Final answer
    x = 515,557.84

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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.