Home / 740,485.08-1,021,867.92-400,954.32

Finding the Fourth Proportional to 740,485.08, 1,021,867.92 and 400,954.32

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Solution

The fourth proportional to 740,485.08, 1,021,867.92 and 400,954.32 is: 553,316.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,485.08 : 1,021,867.92 = 400,954.32 : x
  2. Step 2: Convert to fraction form
    740,485.08/1,021,867.92 = 400,954.32/x
  3. Step 3: Cross multiply
    740,485.08x = 1,021,867.92 × 400,954.32
  4. Step 4: Simplify right side
    740,485.08x = 409,722,356,993.41
  5. Step 5: Solve for x
    x = 409,722,356,993.41/740,485.08
  6. Step 6: Final answer
    x = 553,316.15

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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.