Home / 712,019.07-1,067,277.74-487,319.40

Finding the Fourth Proportional to 712,019.07, 1,067,277.74 and 487,319.40

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Solution

The fourth proportional to 712,019.07, 1,067,277.74 and 487,319.40 is: 730,465.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,019.07 : 1,067,277.74 = 487,319.40 : x
  2. Step 2: Convert to fraction form
    712,019.07/1,067,277.74 = 487,319.40/x
  3. Step 3: Cross multiply
    712,019.07x = 1,067,277.74 × 487,319.40
  4. Step 4: Simplify right side
    712,019.07x = 520,105,145,453.56
  5. Step 5: Solve for x
    x = 520,105,145,453.56/712,019.07
  6. Step 6: Final answer
    x = 730,465.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.