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Finding the Fourth Proportional to 369,630.80, 554,446.20 and 346,302.80

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Solution

The fourth proportional to 369,630.80, 554,446.20 and 346,302.80 is: 519,454.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,630.80 : 554,446.20 = 346,302.80 : x
  2. Step 2: Convert to fraction form
    369,630.80/554,446.20 = 346,302.80/x
  3. Step 3: Cross multiply
    369,630.80x = 554,446.20 × 346,302.80
  4. Step 4: Simplify right side
    369,630.80x = 192,006,271,509.36
  5. Step 5: Solve for x
    x = 192,006,271,509.36/369,630.80
  6. Step 6: Final answer
    x = 519,454.20

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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.