Home / 607,529.20-909,981.60-326,718.40

Finding the Fourth Proportional to 607,529.20, 909,981.60 and 326,718.40

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Solution

The fourth proportional to 607,529.20, 909,981.60 and 326,718.40 is: 489,371.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,529.20 : 909,981.60 = 326,718.40 : x
  2. Step 2: Convert to fraction form
    607,529.20/909,981.60 = 326,718.40/x
  3. Step 3: Cross multiply
    607,529.20x = 909,981.60 × 326,718.40
  4. Step 4: Simplify right side
    607,529.20x = 297,307,732,381.44
  5. Step 5: Solve for x
    x = 297,307,732,381.44/607,529.20
  6. Step 6: Final answer
    x = 489,371.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.