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Finding the Fourth Proportional to 609,655.18, 915,050.19 and 310,359.82

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Solution

The fourth proportional to 609,655.18, 915,050.19 and 310,359.82 is: 465,828.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,655.18 : 915,050.19 = 310,359.82 : x
  2. Step 2: Convert to fraction form
    609,655.18/915,050.19 = 310,359.82/x
  3. Step 3: Cross multiply
    609,655.18x = 915,050.19 × 310,359.82
  4. Step 4: Simplify right side
    609,655.18x = 283,994,810,707.57
  5. Step 5: Solve for x
    x = 283,994,810,707.57/609,655.18
  6. Step 6: Final answer
    x = 465,828.59

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1.5x scale

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.