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Finding the Fourth Proportional to 521,485.45, 719,590.43 and 292,010.83

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Solution

The fourth proportional to 521,485.45, 719,590.43 and 292,010.83 is: 402,941.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,485.45 : 719,590.43 = 292,010.83 : x
  2. Step 2: Convert to fraction form
    521,485.45/719,590.43 = 292,010.83/x
  3. Step 3: Cross multiply
    521,485.45x = 719,590.43 × 292,010.83
  4. Step 4: Simplify right side
    521,485.45x = 210,128,197,655.41
  5. Step 5: Solve for x
    x = 210,128,197,655.41/521,485.45
  6. Step 6: Final answer
    x = 402,941.63

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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.