Home / 897,369.80-1,238,374.20-489,480.41

Finding the Fourth Proportional to 897,369.80, 1,238,374.20 and 489,480.41

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Solution

The fourth proportional to 897,369.80, 1,238,374.20 and 489,480.41 is: 675,485.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,369.80 : 1,238,374.20 = 489,480.41 : x
  2. Step 2: Convert to fraction form
    897,369.80/1,238,374.20 = 489,480.41/x
  3. Step 3: Cross multiply
    897,369.80x = 1,238,374.20 × 489,480.41
  4. Step 4: Simplify right side
    897,369.80x = 606,159,911,149.42
  5. Step 5: Solve for x
    x = 606,159,911,149.42/897,369.80
  6. Step 6: Final answer
    x = 675,485.08

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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.