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Finding the Fourth Proportional to 405,987.93, 560,272.41 and 262,996.74

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Solution

The fourth proportional to 405,987.93, 560,272.41 and 262,996.74 is: 362,941.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,987.93 : 560,272.41 = 262,996.74 : x
  2. Step 2: Convert to fraction form
    405,987.93/560,272.41 = 262,996.74/x
  3. Step 3: Cross multiply
    405,987.93x = 560,272.41 × 262,996.74
  4. Step 4: Simplify right side
    405,987.93x = 147,349,817,341.94
  5. Step 5: Solve for x
    x = 147,349,817,341.94/405,987.93
  6. Step 6: Final answer
    x = 362,941.37

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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.