Home / 657,860.10-907,846.80-371,380.18

Finding the Fourth Proportional to 657,860.10, 907,846.80 and 371,380.18

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Solution

The fourth proportional to 657,860.10, 907,846.80 and 371,380.18 is: 512,504.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,860.10 : 907,846.80 = 371,380.18 : x
  2. Step 2: Convert to fraction form
    657,860.10/907,846.80 = 371,380.18/x
  3. Step 3: Cross multiply
    657,860.10x = 907,846.80 × 371,380.18
  4. Step 4: Simplify right side
    657,860.10x = 337,156,307,996.42
  5. Step 5: Solve for x
    x = 337,156,307,996.42/657,860.10
  6. Step 6: Final answer
    x = 512,504.57

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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.