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Finding the Fourth Proportional to 489,873,665.60, 734,810,498.40 and 452,460,219.20

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Solution

The fourth proportional to 489,873,665.60, 734,810,498.40 and 452,460,219.20 is: 678,690,328.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,873,665.60 : 734,810,498.40 = 452,460,219.20 : x
  2. Step 2: Convert to fraction form
    489,873,665.60/734,810,498.40 = 452,460,219.20/x
  3. Step 3: Cross multiply
    489,873,665.60x = 734,810,498.40 × 452,460,219.20
  4. Step 4: Simplify right side
    489,873,665.60x = 332,472,519,176,525,248
  5. Step 5: Solve for x
    x = 332,472,519,176,525,248/489,873,665.60
  6. Step 6: Final answer
    x = 678,690,328.80

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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.