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Finding the Fourth Proportional to 575,066.60, 862,859.10 and 275,431.40

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Solution

The fourth proportional to 575,066.60, 862,859.10 and 275,431.40 is: 413,271.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,066.60 : 862,859.10 = 275,431.40 : x
  2. Step 2: Convert to fraction form
    575,066.60/862,859.10 = 275,431.40/x
  3. Step 3: Cross multiply
    575,066.60x = 862,859.10 × 275,431.40
  4. Step 4: Simplify right side
    575,066.60x = 237,658,489,915.74
  5. Step 5: Solve for x
    x = 237,658,489,915.74/575,066.60
  6. Step 6: Final answer
    x = 413,271.25

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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.