Home / 740,351.08-1,021,684.80-400,819.24

Finding the Fourth Proportional to 740,351.08, 1,021,684.80 and 400,819.24

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Solution

The fourth proportional to 740,351.08, 1,021,684.80 and 400,819.24 is: 553,130.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,351.08 : 1,021,684.80 = 400,819.24 : x
  2. Step 2: Convert to fraction form
    740,351.08/1,021,684.80 = 400,819.24/x
  3. Step 3: Cross multiply
    740,351.08x = 1,021,684.80 × 400,819.24
  4. Step 4: Simplify right side
    740,351.08x = 409,510,925,055.55
  5. Step 5: Solve for x
    x = 409,510,925,055.55/740,351.08
  6. Step 6: Final answer
    x = 553,130.72

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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.