Home / 877,430.84-1,314,148.80-686,701.76

Finding the Fourth Proportional to 877,430.84, 1,314,148.80 and 686,701.76

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Solution

The fourth proportional to 877,430.84, 1,314,148.80 and 686,701.76 is: 1,028,489.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,430.84 : 1,314,148.80 = 686,701.76 : x
  2. Step 2: Convert to fraction form
    877,430.84/1,314,148.80 = 686,701.76/x
  3. Step 3: Cross multiply
    877,430.84x = 1,314,148.80 × 686,701.76
  4. Step 4: Simplify right side
    877,430.84x = 902,428,293,861.89
  5. Step 5: Solve for x
    x = 902,428,293,861.89/877,430.84
  6. Step 6: Final answer
    x = 1,028,489.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.