Home / 407,837.25-563,019.90-254,960.40

Finding the Fourth Proportional to 407,837.25, 563,019.90 and 254,960.40

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Solution

The fourth proportional to 407,837.25, 563,019.90 and 254,960.40 is: 351,973.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,837.25 : 563,019.90 = 254,960.40 : x
  2. Step 2: Convert to fraction form
    407,837.25/563,019.90 = 254,960.40/x
  3. Step 3: Cross multiply
    407,837.25x = 563,019.90 × 254,960.40
  4. Step 4: Simplify right side
    407,837.25x = 143,547,778,911.96
  5. Step 5: Solve for x
    x = 143,547,778,911.96/407,837.25
  6. Step 6: Final answer
    x = 351,973.19

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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.