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Finding the Fourth Proportional to 551,733.47, 761,367.90 and 322,312.01

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Solution

The fourth proportional to 551,733.47, 761,367.90 and 322,312.01 is: 444,776.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,733.47 : 761,367.90 = 322,312.01 : x
  2. Step 2: Convert to fraction form
    551,733.47/761,367.90 = 322,312.01/x
  3. Step 3: Cross multiply
    551,733.47x = 761,367.90 × 322,312.01
  4. Step 4: Simplify right side
    551,733.47x = 245,398,019,883.00
  5. Step 5: Solve for x
    x = 245,398,019,883.00/551,733.47
  6. Step 6: Final answer
    x = 444,776.38

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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.