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Finding the Fourth Proportional to 604,627.20, 907,815.60 and 455,911.20

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Solution

The fourth proportional to 604,627.20, 907,815.60 and 455,911.20 is: 684,526.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,627.20 : 907,815.60 = 455,911.20 : x
  2. Step 2: Convert to fraction form
    604,627.20/907,815.60 = 455,911.20/x
  3. Step 3: Cross multiply
    604,627.20x = 907,815.60 × 455,911.20
  4. Step 4: Simplify right side
    604,627.20x = 413,883,299,574.72
  5. Step 5: Solve for x
    x = 413,883,299,574.72/604,627.20
  6. Step 6: Final answer
    x = 684,526.43

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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.