Home / 688,931.61-1,033,420.72-239,656.36

Finding the Fourth Proportional to 688,931.61, 1,033,420.72 and 239,656.36

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Solution

The fourth proportional to 688,931.61, 1,033,420.72 and 239,656.36 is: 359,492.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,931.61 : 1,033,420.72 = 239,656.36 : x
  2. Step 2: Convert to fraction form
    688,931.61/1,033,420.72 = 239,656.36/x
  3. Step 3: Cross multiply
    688,931.61x = 1,033,420.72 × 239,656.36
  4. Step 4: Simplify right side
    688,931.61x = 247,665,848,103.78
  5. Step 5: Solve for x
    x = 247,665,848,103.78/688,931.61
  6. Step 6: Final answer
    x = 359,492.65

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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.