Home / 712,701.60-1,069,051.68-291,978.24

Finding the Fourth Proportional to 712,701.60, 1,069,051.68 and 291,978.24

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Solution

The fourth proportional to 712,701.60, 1,069,051.68 and 291,978.24 is: 437,967.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,701.60 : 1,069,051.68 = 291,978.24 : x
  2. Step 2: Convert to fraction form
    712,701.60/1,069,051.68 = 291,978.24/x
  3. Step 3: Cross multiply
    712,701.60x = 1,069,051.68 × 291,978.24
  4. Step 4: Simplify right side
    712,701.60x = 312,139,827,995.44
  5. Step 5: Solve for x
    x = 312,139,827,995.44/712,701.60
  6. Step 6: Final answer
    x = 437,967.07

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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.