Home / 1,312,617-1,811,412.18-709,005

Finding the Fourth Proportional to 1,312,617, 1,811,412.18 and 709,005

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Solution

The fourth proportional to 1,312,617, 1,811,412.18 and 709,005 is: 978,427.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,617 : 1,811,412.18 = 709,005 : x
  2. Step 2: Convert to fraction form
    1,312,617/1,811,412.18 = 709,005/x
  3. Step 3: Cross multiply
    1,312,617x = 1,811,412.18 × 709,005
  4. Step 4: Simplify right side
    1,312,617x = 1,284,300,292,680.90
  5. Step 5: Solve for x
    x = 1,284,300,292,680.90/1,312,617
  6. Step 6: Final answer
    x = 978,427.29

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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.