Home / 740,278.08-1,021,586.99-400,746.33

Finding the Fourth Proportional to 740,278.08, 1,021,586.99 and 400,746.33

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Solution

The fourth proportional to 740,278.08, 1,021,586.99 and 400,746.33 is: 553,031.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,278.08 : 1,021,586.99 = 400,746.33 : x
  2. Step 2: Convert to fraction form
    740,278.08/1,021,586.99 = 400,746.33/x
  3. Step 3: Cross multiply
    740,278.08x = 1,021,586.99 × 400,746.33
  4. Step 4: Simplify right side
    740,278.08x = 409,397,235,014.52
  5. Step 5: Solve for x
    x = 409,397,235,014.52/740,278.08
  6. Step 6: Final answer
    x = 553,031.69

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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.