Home / 917,217.10-1,264,868.76-712,907.56

Finding the Fourth Proportional to 917,217.10, 1,264,868.76 and 712,907.56

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Solution

The fourth proportional to 917,217.10, 1,264,868.76 and 712,907.56 is: 983,120.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,217.10 : 1,264,868.76 = 712,907.56 : x
  2. Step 2: Convert to fraction form
    917,217.10/1,264,868.76 = 712,907.56/x
  3. Step 3: Cross multiply
    917,217.10x = 1,264,868.76 × 712,907.56
  4. Step 4: Simplify right side
    917,217.10x = 901,734,501,411.83
  5. Step 5: Solve for x
    x = 901,734,501,411.83/917,217.10
  6. Step 6: Final answer
    x = 983,120.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.