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Finding the Fourth Proportional to 581,859.50, 870,922.42 and 311,310.86

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Solution

The fourth proportional to 581,859.50, 870,922.42 and 311,310.86 is: 465,967.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,859.50 : 870,922.42 = 311,310.86 : x
  2. Step 2: Convert to fraction form
    581,859.50/870,922.42 = 311,310.86/x
  3. Step 3: Cross multiply
    581,859.50x = 870,922.42 × 311,310.86
  4. Step 4: Simplify right side
    581,859.50x = 271,127,602,430.59
  5. Step 5: Solve for x
    x = 271,127,602,430.59/581,859.50
  6. Step 6: Final answer
    x = 465,967.48

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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.