Home / 637,784.64-879,619.23-465,508.98

Finding the Fourth Proportional to 637,784.64, 879,619.23 and 465,508.98

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Solution

The fourth proportional to 637,784.64, 879,619.23 and 465,508.98 is: 642,020.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,784.64 : 879,619.23 = 465,508.98 : x
  2. Step 2: Convert to fraction form
    637,784.64/879,619.23 = 465,508.98/x
  3. Step 3: Cross multiply
    637,784.64x = 879,619.23 × 465,508.98
  4. Step 4: Simplify right side
    637,784.64x = 409,470,650,545.69
  5. Step 5: Solve for x
    x = 409,470,650,545.69/637,784.64
  6. Step 6: Final answer
    x = 642,020.24

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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.