Home / 646,565.45-892,288.01-360,085.55

Finding the Fourth Proportional to 646,565.45, 892,288.01 and 360,085.55

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Solution

The fourth proportional to 646,565.45, 892,288.01 and 360,085.55 is: 496,933.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,565.45 : 892,288.01 = 360,085.55 : x
  2. Step 2: Convert to fraction form
    646,565.45/892,288.01 = 360,085.55/x
  3. Step 3: Cross multiply
    646,565.45x = 892,288.01 × 360,085.55
  4. Step 4: Simplify right side
    646,565.45x = 321,300,017,038.83
  5. Step 5: Solve for x
    x = 321,300,017,038.83/646,565.45
  6. Step 6: Final answer
    x = 496,933.48

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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.