Home / 745,885.20-1,118,827.80-213,423.60

Finding the Fourth Proportional to 745,885.20, 1,118,827.80 and 213,423.60

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Solution

The fourth proportional to 745,885.20, 1,118,827.80 and 213,423.60 is: 320,135.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,885.20 : 1,118,827.80 = 213,423.60 : x
  2. Step 2: Convert to fraction form
    745,885.20/1,118,827.80 = 213,423.60/x
  3. Step 3: Cross multiply
    745,885.20x = 1,118,827.80 × 213,423.60
  4. Step 4: Simplify right side
    745,885.20x = 238,784,256,856.08
  5. Step 5: Solve for x
    x = 238,784,256,856.08/745,885.20
  6. Step 6: Final answer
    x = 320,135.40

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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.