Home / 839,853.12-1,158,284.28-709,668.56

Finding the Fourth Proportional to 839,853.12, 1,158,284.28 and 709,668.56

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Solution

The fourth proportional to 839,853.12, 1,158,284.28 and 709,668.56 is: 978,740.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,853.12 : 1,158,284.28 = 709,668.56 : x
  2. Step 2: Convert to fraction form
    839,853.12/1,158,284.28 = 709,668.56/x
  3. Step 3: Cross multiply
    839,853.12x = 1,158,284.28 × 709,668.56
  4. Step 4: Simplify right side
    839,853.12x = 821,997,937,058.24
  5. Step 5: Solve for x
    x = 821,997,937,058.24/839,853.12
  6. Step 6: Final answer
    x = 978,740.11

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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.