Home / 897,120.40-1,238,056.02-489,244.50

Finding the Fourth Proportional to 897,120.40, 1,238,056.02 and 489,244.50

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Solution

The fourth proportional to 897,120.40, 1,238,056.02 and 489,244.50 is: 675,173.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,120.40 : 1,238,056.02 = 489,244.50 : x
  2. Step 2: Convert to fraction form
    897,120.40/1,238,056.02 = 489,244.50/x
  3. Step 3: Cross multiply
    897,120.40x = 1,238,056.02 × 489,244.50
  4. Step 4: Simplify right side
    897,120.40x = 605,712,098,476.89
  5. Step 5: Solve for x
    x = 605,712,098,476.89/897,120.40
  6. Step 6: Final answer
    x = 675,173.70

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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.