Home / 739,148.04-1,020,026.79-399,618.72

Finding the Fourth Proportional to 739,148.04, 1,020,026.79 and 399,618.72

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Solution

The fourth proportional to 739,148.04, 1,020,026.79 and 399,618.72 is: 551,475.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,148.04 : 1,020,026.79 = 399,618.72 : x
  2. Step 2: Convert to fraction form
    739,148.04/1,020,026.79 = 399,618.72/x
  3. Step 3: Cross multiply
    739,148.04x = 1,020,026.79 × 399,618.72
  4. Step 4: Simplify right side
    739,148.04x = 407,621,800,185.51
  5. Step 5: Solve for x
    x = 407,621,800,185.51/739,148.04
  6. Step 6: Final answer
    x = 551,475.18

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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.