Home / 559,113.50-771,609.02-421,045.26

Finding the Fourth Proportional to 559,113.50, 771,609.02 and 421,045.26

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Solution

The fourth proportional to 559,113.50, 771,609.02 and 421,045.26 is: 581,066.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,113.50 : 771,609.02 = 421,045.26 : x
  2. Step 2: Convert to fraction form
    559,113.50/771,609.02 = 421,045.26/x
  3. Step 3: Cross multiply
    559,113.50x = 771,609.02 × 421,045.26
  4. Step 4: Simplify right side
    559,113.50x = 324,882,320,444.25
  5. Step 5: Solve for x
    x = 324,882,320,444.25/559,113.50
  6. Step 6: Final answer
    x = 581,066.85

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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.