Home / 897,350.18-1,238,347.10-489,460.78

Finding the Fourth Proportional to 897,350.18, 1,238,347.10 and 489,460.78

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Solution

The fourth proportional to 897,350.18, 1,238,347.10 and 489,460.78 is: 675,457.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,350.18 : 1,238,347.10 = 489,460.78 : x
  2. Step 2: Convert to fraction form
    897,350.18/1,238,347.10 = 489,460.78/x
  3. Step 3: Cross multiply
    897,350.18x = 1,238,347.10 × 489,460.78
  4. Step 4: Simplify right side
    897,350.18x = 606,122,328,837.70
  5. Step 5: Solve for x
    x = 606,122,328,837.70/897,350.18
  6. Step 6: Final answer
    x = 675,457.97

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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.