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Finding the Fourth Proportional to 575,312.40, 862,968.60 and 346,989.60

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Solution

The fourth proportional to 575,312.40, 862,968.60 and 346,989.60 is: 520,484.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,312.40 : 862,968.60 = 346,989.60 : x
  2. Step 2: Convert to fraction form
    575,312.40/862,968.60 = 346,989.60/x
  3. Step 3: Cross multiply
    575,312.40x = 862,968.60 × 346,989.60
  4. Step 4: Simplify right side
    575,312.40x = 299,441,129,326.56
  5. Step 5: Solve for x
    x = 299,441,129,326.56/575,312.40
  6. Step 6: Final answer
    x = 520,484.40

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Similar ratio
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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.