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Finding the Fourth Proportional to 710,680.04, 980,738.56 and 404,784.90

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Solution

The fourth proportional to 710,680.04, 980,738.56 and 404,784.90 is: 558,603.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,680.04 : 980,738.56 = 404,784.90 : x
  2. Step 2: Convert to fraction form
    710,680.04/980,738.56 = 404,784.90/x
  3. Step 3: Cross multiply
    710,680.04x = 980,738.56 × 404,784.90
  4. Step 4: Simplify right side
    710,680.04x = 396,988,159,935.74
  5. Step 5: Solve for x
    x = 396,988,159,935.74/710,680.04
  6. Step 6: Final answer
    x = 558,603.22

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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.