Home / 897,095.42-1,238,021.57-489,219.58

Finding the Fourth Proportional to 897,095.42, 1,238,021.57 and 489,219.58

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Solution

The fourth proportional to 897,095.42, 1,238,021.57 and 489,219.58 is: 675,139.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    897,095.42 : 1,238,021.57 = 489,219.58 : x
  2. Step 2: Convert to fraction form
    897,095.42/1,238,021.57 = 489,219.58/x
  3. Step 3: Cross multiply
    897,095.42x = 1,238,021.57 × 489,219.58
  4. Step 4: Simplify right side
    897,095.42x = 605,664,392,506.34
  5. Step 5: Solve for x
    x = 605,664,392,506.34/897,095.42
  6. Step 6: Final answer
    x = 675,139.32

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Double scale
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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.