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Finding the Fourth Proportional to 562,045.07, 775,602.98 and 320,405.53

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Solution

The fourth proportional to 562,045.07, 775,602.98 and 320,405.53 is: 442,148.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,045.07 : 775,602.98 = 320,405.53 : x
  2. Step 2: Convert to fraction form
    562,045.07/775,602.98 = 320,405.53/x
  3. Step 3: Cross multiply
    562,045.07x = 775,602.98 × 320,405.53
  4. Step 4: Simplify right side
    562,045.07x = 248,507,483,876.48
  5. Step 5: Solve for x
    x = 248,507,483,876.48/562,045.07
  6. Step 6: Final answer
    x = 442,148.68

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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.