Home / 631,746.08-871,809.66-345,266.08

Finding the Fourth Proportional to 631,746.08, 871,809.66 and 345,266.08

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Solution

The fourth proportional to 631,746.08, 871,809.66 and 345,266.08 is: 476,467.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,746.08 : 871,809.66 = 345,266.08 : x
  2. Step 2: Convert to fraction form
    631,746.08/871,809.66 = 345,266.08/x
  3. Step 3: Cross multiply
    631,746.08x = 871,809.66 × 345,266.08
  4. Step 4: Simplify right side
    631,746.08x = 301,006,303,814.33
  5. Step 5: Solve for x
    x = 301,006,303,814.33/631,746.08
  6. Step 6: Final answer
    x = 476,467.23

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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.