Home / 1,315,312.40-1,971,984.45-716,949.20

Finding the Fourth Proportional to 1,315,312.40, 1,971,984.45 and 716,949.20

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Solution

The fourth proportional to 1,315,312.40, 1,971,984.45 and 716,949.20 is: 1,074,887.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,312.40 : 1,971,984.45 = 716,949.20 : x
  2. Step 2: Convert to fraction form
    1,315,312.40/1,971,984.45 = 716,949.20/x
  3. Step 3: Cross multiply
    1,315,312.40x = 1,971,984.45 × 716,949.20
  4. Step 4: Simplify right side
    1,315,312.40x = 1,413,812,673,839.94
  5. Step 5: Solve for x
    x = 1,413,812,673,839.94/1,315,312.40
  6. Step 6: Final answer
    x = 1,074,887.36

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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.