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Finding the Fourth Proportional to 554,307.92, 830,616 and 288,154.88

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Solution

The fourth proportional to 554,307.92, 830,616 and 288,154.88 is: 431,792.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,307.92 : 830,616 = 288,154.88 : x
  2. Step 2: Convert to fraction form
    554,307.92/830,616 = 288,154.88/x
  3. Step 3: Cross multiply
    554,307.92x = 830,616 × 288,154.88
  4. Step 4: Simplify right side
    554,307.92x = 239,346,053,806.08
  5. Step 5: Solve for x
    x = 239,346,053,806.08/554,307.92
  6. Step 6: Final answer
    x = 431,792.59

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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.