Home / 900,885.74-1,243,222.45-492,987.68

Finding the Fourth Proportional to 900,885.74, 1,243,222.45 and 492,987.68

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Solution

The fourth proportional to 900,885.74, 1,243,222.45 and 492,987.68 is: 680,323.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,885.74 : 1,243,222.45 = 492,987.68 : x
  2. Step 2: Convert to fraction form
    900,885.74/1,243,222.45 = 492,987.68/x
  3. Step 3: Cross multiply
    900,885.74x = 1,243,222.45 × 492,987.68
  4. Step 4: Simplify right side
    900,885.74x = 612,893,351,349.42
  5. Step 5: Solve for x
    x = 612,893,351,349.42/900,885.74
  6. Step 6: Final answer
    x = 680,323.07

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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.