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Finding the Fourth Proportional to 525,599.04, 725,305.68 and 310,864.80

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Solution

The fourth proportional to 525,599.04, 725,305.68 and 310,864.80 is: 428,981.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,599.04 : 725,305.68 = 310,864.80 : x
  2. Step 2: Convert to fraction form
    525,599.04/725,305.68 = 310,864.80/x
  3. Step 3: Cross multiply
    525,599.04x = 725,305.68 × 310,864.80
  4. Step 4: Simplify right side
    525,599.04x = 225,472,005,152.06
  5. Step 5: Solve for x
    x = 225,472,005,152.06/525,599.04
  6. Step 6: Final answer
    x = 428,981.01

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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.