Home / 839,443.40-1,259,165.10-709,535.60

Finding the Fourth Proportional to 839,443.40, 1,259,165.10 and 709,535.60

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Solution

The fourth proportional to 839,443.40, 1,259,165.10 and 709,535.60 is: 1,064,303.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,443.40 : 1,259,165.10 = 709,535.60 : x
  2. Step 2: Convert to fraction form
    839,443.40/1,259,165.10 = 709,535.60/x
  3. Step 3: Cross multiply
    839,443.40x = 1,259,165.10 × 709,535.60
  4. Step 4: Simplify right side
    839,443.40x = 893,422,464,727.56
  5. Step 5: Solve for x
    x = 893,422,464,727.56/839,443.40
  6. Step 6: Final answer
    x = 1,064,303.40

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Double scale
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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.