Home / 897,123.40-1,238,060.16-489,247.49

Finding the Fourth Proportional to 897,123.40, 1,238,060.16 and 489,247.49

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Solution

The fourth proportional to 897,123.40, 1,238,060.16 and 489,247.49 is: 675,177.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,123.40 : 1,238,060.16 = 489,247.49 : x
  2. Step 2: Convert to fraction form
    897,123.40/1,238,060.16 = 489,247.49/x
  3. Step 3: Cross multiply
    897,123.40x = 1,238,060.16 × 489,247.49
  4. Step 4: Simplify right side
    897,123.40x = 605,717,825,749.00
  5. Step 5: Solve for x
    x = 605,717,825,749.00/897,123.40
  6. Step 6: Final answer
    x = 675,177.82

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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.