Home / 475,084.16-655,681.36-291,290.21

Finding the Fourth Proportional to 475,084.16, 655,681.36 and 291,290.21

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Solution

The fourth proportional to 475,084.16, 655,681.36 and 291,290.21 is: 402,020.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,084.16 : 655,681.36 = 291,290.21 : x
  2. Step 2: Convert to fraction form
    475,084.16/655,681.36 = 291,290.21/x
  3. Step 3: Cross multiply
    475,084.16x = 655,681.36 × 291,290.21
  4. Step 4: Simplify right side
    475,084.16x = 190,993,557,769.08
  5. Step 5: Solve for x
    x = 190,993,557,769.08/475,084.16
  6. Step 6: Final answer
    x = 402,020.48

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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.