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Finding the Fourth Proportional to 609,655.19, 915,050.18 and 310,359.83

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Solution

The fourth proportional to 609,655.19, 915,050.18 and 310,359.83 is: 465,828.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,655.19 : 915,050.18 = 310,359.83 : x
  2. Step 2: Convert to fraction form
    609,655.19/915,050.18 = 310,359.83/x
  3. Step 3: Cross multiply
    609,655.19x = 915,050.18 × 310,359.83
  4. Step 4: Simplify right side
    609,655.19x = 283,994,814,506.92
  5. Step 5: Solve for x
    x = 283,994,814,506.92/609,655.19
  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.