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Finding the Fourth Proportional to 573,448.37, 791,379.10 and 315,345.11

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Solution

The fourth proportional to 573,448.37, 791,379.10 and 315,345.11 is: 435,187.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,448.37 : 791,379.10 = 315,345.11 : x
  2. Step 2: Convert to fraction form
    573,448.37/791,379.10 = 315,345.11/x
  3. Step 3: Cross multiply
    573,448.37x = 791,379.10 × 315,345.11
  4. Step 4: Simplify right side
    573,448.37x = 249,557,529,341.20
  5. Step 5: Solve for x
    x = 249,557,529,341.20/573,448.37
  6. Step 6: Final answer
    x = 435,187.44

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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.