Home / 743,095.90-1,114,641.79-210,621.55

Finding the Fourth Proportional to 743,095.90, 1,114,641.79 and 210,621.55

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Solution

The fourth proportional to 743,095.90, 1,114,641.79 and 210,621.55 is: 315,931.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,095.90 : 1,114,641.79 = 210,621.55 : x
  2. Step 2: Convert to fraction form
    743,095.90/1,114,641.79 = 210,621.55/x
  3. Step 3: Cross multiply
    743,095.90x = 1,114,641.79 × 210,621.55
  4. Step 4: Simplify right side
    743,095.90x = 234,767,581,504.58
  5. Step 5: Solve for x
    x = 234,767,581,504.58/743,095.90
  6. Step 6: Final answer
    x = 315,931.74

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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.