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Finding the Fourth Proportional to 648,295.80, 972,006.30 and 344,740.20

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Solution

The fourth proportional to 648,295.80, 972,006.30 and 344,740.20 is: 516,877.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,295.80 : 972,006.30 = 344,740.20 : x
  2. Step 2: Convert to fraction form
    648,295.80/972,006.30 = 344,740.20/x
  3. Step 3: Cross multiply
    648,295.80x = 972,006.30 × 344,740.20
  4. Step 4: Simplify right side
    648,295.80x = 335,089,646,263.26
  5. Step 5: Solve for x
    x = 335,089,646,263.26/648,295.80
  6. Step 6: Final answer
    x = 516,877.71

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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.