Home / 745,409.60-1,118,114.40-272,110.40

Finding the Fourth Proportional to 745,409.60, 1,118,114.40 and 272,110.40

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Solution

The fourth proportional to 745,409.60, 1,118,114.40 and 272,110.40 is: 408,165.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,409.60 : 1,118,114.40 = 272,110.40 : x
  2. Step 2: Convert to fraction form
    745,409.60/1,118,114.40 = 272,110.40/x
  3. Step 3: Cross multiply
    745,409.60x = 1,118,114.40 × 272,110.40
  4. Step 4: Simplify right side
    745,409.60x = 304,250,556,629.76
  5. Step 5: Solve for x
    x = 304,250,556,629.76/745,409.60
  6. Step 6: Final answer
    x = 408,165.60

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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.