Home / 869,113.10-1,303,669.65-513,944.30

Finding the Fourth Proportional to 869,113.10, 1,303,669.65 and 513,944.30

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Solution

The fourth proportional to 869,113.10, 1,303,669.65 and 513,944.30 is: 770,916.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,113.10 : 1,303,669.65 = 513,944.30 : x
  2. Step 2: Convert to fraction form
    869,113.10/1,303,669.65 = 513,944.30/x
  3. Step 3: Cross multiply
    869,113.10x = 1,303,669.65 × 513,944.30
  4. Step 4: Simplify right side
    869,113.10x = 670,013,585,700.50
  5. Step 5: Solve for x
    x = 670,013,585,700.50/869,113.10
  6. Step 6: Final answer
    x = 770,916.45

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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.