Home / 712,906.08-1,069,275.88-286,424.64

Finding the Fourth Proportional to 712,906.08, 1,069,275.88 and 286,424.64

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Solution

The fourth proportional to 712,906.08, 1,069,275.88 and 286,424.64 is: 429,603.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,906.08 : 1,069,275.88 = 286,424.64 : x
  2. Step 2: Convert to fraction form
    712,906.08/1,069,275.88 = 286,424.64/x
  3. Step 3: Cross multiply
    712,906.08x = 1,069,275.88 × 286,424.64
  4. Step 4: Simplify right side
    712,906.08x = 306,266,958,989.68
  5. Step 5: Solve for x
    x = 306,266,958,989.68/712,906.08
  6. Step 6: Final answer
    x = 429,603.52

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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.