Home / 1,256,320.40-1,734,030.08-712,774.34

Finding the Fourth Proportional to 1,256,320.40, 1,734,030.08 and 712,774.34

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Solution

The fourth proportional to 1,256,320.40, 1,734,030.08 and 712,774.34 is: 983,803.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,320.40 : 1,734,030.08 = 712,774.34 : x
  2. Step 2: Convert to fraction form
    1,256,320.40/1,734,030.08 = 712,774.34/x
  3. Step 3: Cross multiply
    1,256,320.40x = 1,734,030.08 × 712,774.34
  4. Step 4: Simplify right side
    1,256,320.40x = 1,235,972,145,812.15
  5. Step 5: Solve for x
    x = 1,235,972,145,812.15/1,256,320.40
  6. Step 6: Final answer
    x = 983,803.29

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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.