Home / 685,727.39-946,275.77-379,785.53

Finding the Fourth Proportional to 685,727.39, 946,275.77 and 379,785.53

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Solution

The fourth proportional to 685,727.39, 946,275.77 and 379,785.53 is: 524,088.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,727.39 : 946,275.77 = 379,785.53 : x
  2. Step 2: Convert to fraction form
    685,727.39/946,275.77 = 379,785.53/x
  3. Step 3: Cross multiply
    685,727.39x = 946,275.77 × 379,785.53
  4. Step 4: Simplify right side
    685,727.39x = 359,381,838,205.30
  5. Step 5: Solve for x
    x = 359,381,838,205.30/685,727.39
  6. Step 6: Final answer
    x = 524,088.50

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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.