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Finding the Fourth Proportional to 672,488.72, 928,006.48 and 366,558.36

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Solution

The fourth proportional to 672,488.72, 928,006.48 and 366,558.36 is: 505,835.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,488.72 : 928,006.48 = 366,558.36 : x
  2. Step 2: Convert to fraction form
    672,488.72/928,006.48 = 366,558.36/x
  3. Step 3: Cross multiply
    672,488.72x = 928,006.48 × 366,558.36
  4. Step 4: Simplify right side
    672,488.72x = 340,168,533,378.17
  5. Step 5: Solve for x
    x = 340,168,533,378.17/672,488.72
  6. Step 6: Final answer
    x = 505,835.30

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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.