Home / 413,981.40-620,972.10-272,263.80

Finding the Fourth Proportional to 413,981.40, 620,972.10 and 272,263.80

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Solution

The fourth proportional to 413,981.40, 620,972.10 and 272,263.80 is: 408,395.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,981.40 : 620,972.10 = 272,263.80 : x
  2. Step 2: Convert to fraction form
    413,981.40/620,972.10 = 272,263.80/x
  3. Step 3: Cross multiply
    413,981.40x = 620,972.10 × 272,263.80
  4. Step 4: Simplify right side
    413,981.40x = 169,068,223,639.98
  5. Step 5: Solve for x
    x = 169,068,223,639.98/413,981.40
  6. Step 6: Final answer
    x = 408,395.70

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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.