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Finding the Fourth Proportional to 877,131, 1,210,470.12 and 537,533.64

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Solution

The fourth proportional to 877,131, 1,210,470.12 and 537,533.64 is: 741,814.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,131 : 1,210,470.12 = 537,533.64 : x
  2. Step 2: Convert to fraction form
    877,131/1,210,470.12 = 537,533.64/x
  3. Step 3: Cross multiply
    877,131x = 1,210,470.12 × 537,533.64
  4. Step 4: Simplify right side
    877,131x = 650,668,409,714.84
  5. Step 5: Solve for x
    x = 650,668,409,714.84/877,131
  6. Step 6: Final answer
    x = 741,814.40

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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.