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Finding the Fourth Proportional to 510,578.80, 766,159.80 and 352,920.40

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Solution

The fourth proportional to 510,578.80, 766,159.80 and 352,920.40 is: 529,582.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,578.80 : 766,159.80 = 352,920.40 : x
  2. Step 2: Convert to fraction form
    510,578.80/766,159.80 = 352,920.40/x
  3. Step 3: Cross multiply
    510,578.80x = 766,159.80 × 352,920.40
  4. Step 4: Simplify right side
    510,578.80x = 270,393,423,079.92
  5. Step 5: Solve for x
    x = 270,393,423,079.92/510,578.80
  6. Step 6: Final answer
    x = 529,582.16

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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.