Home / 745,403.40-1,118,105.10-706,912.20

Finding the Fourth Proportional to 745,403.40, 1,118,105.10 and 706,912.20

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Solution

The fourth proportional to 745,403.40, 1,118,105.10 and 706,912.20 is: 1,060,368.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,403.40 : 1,118,105.10 = 706,912.20 : x
  2. Step 2: Convert to fraction form
    745,403.40/1,118,105.10 = 706,912.20/x
  3. Step 3: Cross multiply
    745,403.40x = 1,118,105.10 × 706,912.20
  4. Step 4: Simplify right side
    745,403.40x = 790,402,136,072.22
  5. Step 5: Solve for x
    x = 790,402,136,072.22/745,403.40
  6. Step 6: Final answer
    x = 1,060,368.30

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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.