Home / 1,130,389.56-1,558,868.76-742,520.64

Finding the Fourth Proportional to 1,130,389.56, 1,558,868.76 and 742,520.64

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Solution

The fourth proportional to 1,130,389.56, 1,558,868.76 and 742,520.64 is: 1,023,976.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,389.56 : 1,558,868.76 = 742,520.64 : x
  2. Step 2: Convert to fraction form
    1,130,389.56/1,558,868.76 = 742,520.64/x
  3. Step 3: Cross multiply
    1,130,389.56x = 1,558,868.76 × 742,520.64
  4. Step 4: Simplify right side
    1,130,389.56x = 1,157,492,229,351.21
  5. Step 5: Solve for x
    x = 1,157,492,229,351.21/1,130,389.56
  6. Step 6: Final answer
    x = 1,023,976.40

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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.