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Finding the Fourth Proportional to 647,045.55, 892,923.75 and 360,559.35

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Solution

The fourth proportional to 647,045.55, 892,923.75 and 360,559.35 is: 497,572.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,045.55 : 892,923.75 = 360,559.35 : x
  2. Step 2: Convert to fraction form
    647,045.55/892,923.75 = 360,559.35/x
  3. Step 3: Cross multiply
    647,045.55x = 892,923.75 × 360,559.35
  4. Step 4: Simplify right side
    647,045.55x = 321,952,006,899.56
  5. Step 5: Solve for x
    x = 321,952,006,899.56/647,045.55
  6. Step 6: Final answer
    x = 497,572.40

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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.