Home / 745,608.22-1,117,369.79-403,312.72

Finding the Fourth Proportional to 745,608.22, 1,117,369.79 and 403,312.72

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Solution

The fourth proportional to 745,608.22, 1,117,369.79 and 403,312.72 is: 604,405.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,608.22 : 1,117,369.79 = 403,312.72 : x
  2. Step 2: Convert to fraction form
    745,608.22/1,117,369.79 = 403,312.72/x
  3. Step 3: Cross multiply
    745,608.22x = 1,117,369.79 × 403,312.72
  4. Step 4: Simplify right side
    745,608.22x = 450,649,447,465.59
  5. Step 5: Solve for x
    x = 450,649,447,465.59/745,608.22
  6. Step 6: Final answer
    x = 604,405.15

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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.