Home / 739,327.50-1,020,274.38-399,798.18

Finding the Fourth Proportional to 739,327.50, 1,020,274.38 and 399,798.18

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Solution

The fourth proportional to 739,327.50, 1,020,274.38 and 399,798.18 is: 551,722.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,327.50 : 1,020,274.38 = 399,798.18 : x
  2. Step 2: Convert to fraction form
    739,327.50/1,020,274.38 = 399,798.18/x
  3. Step 3: Cross multiply
    739,327.50x = 1,020,274.38 × 399,798.18
  4. Step 4: Simplify right side
    739,327.50x = 407,903,840,224.63
  5. Step 5: Solve for x
    x = 407,903,840,224.63/739,327.50
  6. Step 6: Final answer
    x = 551,722.80

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Double scale
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1.5x scale

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.