Home / 943,145.75-1,301,541.34-513,425.77

Finding the Fourth Proportional to 943,145.75, 1,301,541.34 and 513,425.77

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Solution

The fourth proportional to 943,145.75, 1,301,541.34 and 513,425.77 is: 708,527.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,145.75 : 1,301,541.34 = 513,425.77 : x
  2. Step 2: Convert to fraction form
    943,145.75/1,301,541.34 = 513,425.77/x
  3. Step 3: Cross multiply
    943,145.75x = 1,301,541.34 × 513,425.77
  4. Step 4: Simplify right side
    943,145.75x = 668,244,862,064.26
  5. Step 5: Solve for x
    x = 668,244,862,064.26/943,145.75
  6. Step 6: Final answer
    x = 708,527.67

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Double scale
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Similar ratio
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1.5x scale

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.