Home / 1,020,507.36-1,531,706.89-515,423.03

Finding the Fourth Proportional to 1,020,507.36, 1,531,706.89 and 515,423.03

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Solution

The fourth proportional to 1,020,507.36, 1,531,706.89 and 515,423.03 is: 773,612.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,507.36 : 1,531,706.89 = 515,423.03 : x
  2. Step 2: Convert to fraction form
    1,020,507.36/1,531,706.89 = 515,423.03/x
  3. Step 3: Cross multiply
    1,020,507.36x = 1,531,706.89 × 515,423.03
  4. Step 4: Simplify right side
    1,020,507.36x = 789,477,008,856.39
  5. Step 5: Solve for x
    x = 789,477,008,856.39/1,020,507.36
  6. Step 6: Final answer
    x = 773,612.26

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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.