Home / 817,762.52-1,226,727.67-312,748.26

Finding the Fourth Proportional to 817,762.52, 1,226,727.67 and 312,748.26

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Solution

The fourth proportional to 817,762.52, 1,226,727.67 and 312,748.26 is: 469,154.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,762.52 : 1,226,727.67 = 312,748.26 : x
  2. Step 2: Convert to fraction form
    817,762.52/1,226,727.67 = 312,748.26/x
  3. Step 3: Cross multiply
    817,762.52x = 1,226,727.67 × 312,748.26
  4. Step 4: Simplify right side
    817,762.52x = 383,656,939,490.66
  5. Step 5: Solve for x
    x = 383,656,939,490.66/817,762.52
  6. Step 6: Final answer
    x = 469,154.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.