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Finding the Fourth Proportional to 369,632.80, 554,449.20 and 353,886.40

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Solution

The fourth proportional to 369,632.80, 554,449.20 and 353,886.40 is: 530,829.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,632.80 : 554,449.20 = 353,886.40 : x
  2. Step 2: Convert to fraction form
    369,632.80/554,449.20 = 353,886.40/x
  3. Step 3: Cross multiply
    369,632.80x = 554,449.20 × 353,886.40
  4. Step 4: Simplify right side
    369,632.80x = 196,212,031,370.88
  5. Step 5: Solve for x
    x = 196,212,031,370.88/369,632.80
  6. Step 6: Final answer
    x = 530,829.60

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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.