Home / 739,587.84-1,020,630.96-400,055.28

Finding the Fourth Proportional to 739,587.84, 1,020,630.96 and 400,055.28

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Solution

The fourth proportional to 739,587.84, 1,020,630.96 and 400,055.28 is: 552,076.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,587.84 : 1,020,630.96 = 400,055.28 : x
  2. Step 2: Convert to fraction form
    739,587.84/1,020,630.96 = 400,055.28/x
  3. Step 3: Cross multiply
    739,587.84x = 1,020,630.96 × 400,055.28
  4. Step 4: Simplify right side
    739,587.84x = 408,308,804,479.47
  5. Step 5: Solve for x
    x = 408,308,804,479.47/739,587.84
  6. Step 6: Final answer
    x = 552,076.15

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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.