Home / 692,346.59-1,038,602.81-212,511.55

Finding the Fourth Proportional to 692,346.59, 1,038,602.81 and 212,511.55

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Solution

The fourth proportional to 692,346.59, 1,038,602.81 and 212,511.55 is: 318,792.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,346.59 : 1,038,602.81 = 212,511.55 : x
  2. Step 2: Convert to fraction form
    692,346.59/1,038,602.81 = 212,511.55/x
  3. Step 3: Cross multiply
    692,346.59x = 1,038,602.81 × 212,511.55
  4. Step 4: Simplify right side
    692,346.59x = 220,715,086,731.88
  5. Step 5: Solve for x
    x = 220,715,086,731.88/692,346.59
  6. Step 6: Final answer
    x = 318,792.77

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1.5x scale

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.