Home / 637,973.79-880,403.34-351,493.87

Finding the Fourth Proportional to 637,973.79, 880,403.34 and 351,493.87

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Solution

The fourth proportional to 637,973.79, 880,403.34 and 351,493.87 is: 485,061.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,973.79 : 880,403.34 = 351,493.87 : x
  2. Step 2: Convert to fraction form
    637,973.79/880,403.34 = 351,493.87/x
  3. Step 3: Cross multiply
    637,973.79x = 880,403.34 × 351,493.87
  4. Step 4: Simplify right side
    637,973.79x = 309,456,380,381.51
  5. Step 5: Solve for x
    x = 309,456,380,381.51/637,973.79
  6. Step 6: Final answer
    x = 485,061.28

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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.