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Finding the Fourth Proportional to 604,985.60, 906,556.80 and 510,982.40

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Solution

The fourth proportional to 604,985.60, 906,556.80 and 510,982.40 is: 765,695.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,985.60 : 906,556.80 = 510,982.40 : x
  2. Step 2: Convert to fraction form
    604,985.60/906,556.80 = 510,982.40/x
  3. Step 3: Cross multiply
    604,985.60x = 906,556.80 × 510,982.40
  4. Step 4: Simplify right side
    604,985.60x = 463,234,569,400.32
  5. Step 5: Solve for x
    x = 463,234,569,400.32/604,985.60
  6. Step 6: Final answer
    x = 765,695.20

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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.