Home / 900,549.84-1,242,768.59-492,642.92

Finding the Fourth Proportional to 900,549.84, 1,242,768.59 and 492,642.92

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Solution

The fourth proportional to 900,549.84, 1,242,768.59 and 492,642.92 is: 679,852.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,549.84 : 1,242,768.59 = 492,642.92 : x
  2. Step 2: Convert to fraction form
    900,549.84/1,242,768.59 = 492,642.92/x
  3. Step 3: Cross multiply
    900,549.84x = 1,242,768.59 × 492,642.92
  4. Step 4: Simplify right side
    900,549.84x = 612,241,149,553.00
  5. Step 5: Solve for x
    x = 612,241,149,553.00/900,549.84
  6. Step 6: Final answer
    x = 679,852.60

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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.