Home / 688,314.12-1,031,794.02-289,068.36

Finding the Fourth Proportional to 688,314.12, 1,031,794.02 and 289,068.36

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Solution

The fourth proportional to 688,314.12, 1,031,794.02 and 289,068.36 is: 433,318.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,314.12 : 1,031,794.02 = 289,068.36 : x
  2. Step 2: Convert to fraction form
    688,314.12/1,031,794.02 = 289,068.36/x
  3. Step 3: Cross multiply
    688,314.12x = 1,031,794.02 × 289,068.36
  4. Step 4: Simplify right side
    688,314.12x = 298,259,005,219.21
  5. Step 5: Solve for x
    x = 298,259,005,219.21/688,314.12
  6. Step 6: Final answer
    x = 433,318.16

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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.