Home / 921,741.04-1,270,914.60-631,491.76

Finding the Fourth Proportional to 921,741.04, 1,270,914.60 and 631,491.76

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Solution

The fourth proportional to 921,741.04, 1,270,914.60 and 631,491.76 is: 870,713.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,741.04 : 1,270,914.60 = 631,491.76 : x
  2. Step 2: Convert to fraction form
    921,741.04/1,270,914.60 = 631,491.76/x
  3. Step 3: Cross multiply
    921,741.04x = 1,270,914.60 × 631,491.76
  4. Step 4: Simplify right side
    921,741.04x = 802,572,097,563.70
  5. Step 5: Solve for x
    x = 802,572,097,563.70/921,741.04
  6. Step 6: Final answer
    x = 870,713.21

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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.