Home / 739,349.79-1,020,302.28-399,818.04

Finding the Fourth Proportional to 739,349.79, 1,020,302.28 and 399,818.04

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Solution

The fourth proportional to 739,349.79, 1,020,302.28 and 399,818.04 is: 551,748.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,349.79 : 1,020,302.28 = 399,818.04 : x
  2. Step 2: Convert to fraction form
    739,349.79/1,020,302.28 = 399,818.04/x
  3. Step 3: Cross multiply
    739,349.79x = 1,020,302.28 × 399,818.04
  4. Step 4: Simplify right side
    739,349.79x = 407,935,258,796.68
  5. Step 5: Solve for x
    x = 407,935,258,796.68/739,349.79
  6. Step 6: Final answer
    x = 551,748.66

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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.