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Finding the Fourth Proportional to 1,256,506.02, 1,734,017.22 and 712,663.92

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Solution

The fourth proportional to 1,256,506.02, 1,734,017.22 and 712,663.92 is: 983,498.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,506.02 : 1,734,017.22 = 712,663.92 : x
  2. Step 2: Convert to fraction form
    1,256,506.02/1,734,017.22 = 712,663.92/x
  3. Step 3: Cross multiply
    1,256,506.02x = 1,734,017.22 × 712,663.92
  4. Step 4: Simplify right side
    1,256,506.02x = 1,235,771,509,352.70
  5. Step 5: Solve for x
    x = 1,235,771,509,352.70/1,256,506.02
  6. Step 6: Final answer
    x = 983,498.28

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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.