Home / 677,918.13-1,015,637.90-317,427.63

Finding the Fourth Proportional to 677,918.13, 1,015,637.90 and 317,427.63

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Solution

The fourth proportional to 677,918.13, 1,015,637.90 and 317,427.63 is: 475,561.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,918.13 : 1,015,637.90 = 317,427.63 : x
  2. Step 2: Convert to fraction form
    677,918.13/1,015,637.90 = 317,427.63/x
  3. Step 3: Cross multiply
    677,918.13x = 1,015,637.90 × 317,427.63
  4. Step 4: Simplify right side
    677,918.13x = 322,391,529,948.04
  5. Step 5: Solve for x
    x = 322,391,529,948.04/677,918.13
  6. Step 6: Final answer
    x = 475,561.16

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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.