Home / 712,803.76-1,069,076.44-286,322.40

Finding the Fourth Proportional to 712,803.76, 1,069,076.44 and 286,322.40

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Solution

The fourth proportional to 712,803.76, 1,069,076.44 and 286,322.40 is: 429,431.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,803.76 : 1,069,076.44 = 286,322.40 : x
  2. Step 2: Convert to fraction form
    712,803.76/1,069,076.44 = 286,322.40/x
  3. Step 3: Cross multiply
    712,803.76x = 1,069,076.44 × 286,322.40
  4. Step 4: Simplify right side
    712,803.76x = 306,100,532,084.26
  5. Step 5: Solve for x
    x = 306,100,532,084.26/712,803.76
  6. Step 6: Final answer
    x = 429,431.70

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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.