Home / 510,429.04-766,117.19-257,886.91

Finding the Fourth Proportional to 510,429.04, 766,117.19 and 257,886.91

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Solution

The fourth proportional to 510,429.04, 766,117.19 and 257,886.91 is: 387,069.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,429.04 : 766,117.19 = 257,886.91 : x
  2. Step 2: Convert to fraction form
    510,429.04/766,117.19 = 257,886.91/x
  3. Step 3: Cross multiply
    510,429.04x = 766,117.19 × 257,886.91
  4. Step 4: Simplify right side
    510,429.04x = 197,571,597,133.44
  5. Step 5: Solve for x
    x = 197,571,597,133.44/510,429.04
  6. Step 6: Final answer
    x = 387,069.66

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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.