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Finding the Fourth Proportional to 579,852.45, 868,302.45 and 553,280.40

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Solution

The fourth proportional to 579,852.45, 868,302.45 and 553,280.40 is: 828,512.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,852.45 : 868,302.45 = 553,280.40 : x
  2. Step 2: Convert to fraction form
    579,852.45/868,302.45 = 553,280.40/x
  3. Step 3: Cross multiply
    579,852.45x = 868,302.45 × 553,280.40
  4. Step 4: Simplify right side
    579,852.45x = 480,414,726,856.98
  5. Step 5: Solve for x
    x = 480,414,726,856.98/579,852.45
  6. Step 6: Final answer
    x = 828,512.02

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1.5x scale

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.