Home / 558,381.89-837,666.25-438,434.00

Finding the Fourth Proportional to 558,381.89, 837,666.25 and 438,434.00

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Solution

The fourth proportional to 558,381.89, 837,666.25 and 438,434.00 is: 657,724.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,381.89 : 837,666.25 = 438,434.00 : x
  2. Step 2: Convert to fraction form
    558,381.89/837,666.25 = 438,434.00/x
  3. Step 3: Cross multiply
    558,381.89x = 837,666.25 × 438,434.00
  4. Step 4: Simplify right side
    558,381.89x = 367,261,364,153.46
  5. Step 5: Solve for x
    x = 367,261,364,153.46/558,381.89
  6. Step 6: Final answer
    x = 657,724.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.