Home / 740,280.48-1,021,589.28-400,747.92

Finding the Fourth Proportional to 740,280.48, 1,021,589.28 and 400,747.92

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Solution

The fourth proportional to 740,280.48, 1,021,589.28 and 400,747.92 is: 553,033.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,280.48 : 1,021,589.28 = 400,747.92 : x
  2. Step 2: Convert to fraction form
    740,280.48/1,021,589.28 = 400,747.92/x
  3. Step 3: Cross multiply
    740,280.48x = 1,021,589.28 × 400,747.92
  4. Step 4: Simplify right side
    740,280.48x = 409,399,779,054.30
  5. Step 5: Solve for x
    x = 409,399,779,054.30/740,280.48
  6. Step 6: Final answer
    x = 553,033.33

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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.