Home / 878,916.88-1,317,011.60-609,570.40

Finding the Fourth Proportional to 878,916.88, 1,317,011.60 and 609,570.40

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Solution

The fourth proportional to 878,916.88, 1,317,011.60 and 609,570.40 is: 913,409.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,916.88 : 1,317,011.60 = 609,570.40 : x
  2. Step 2: Convert to fraction form
    878,916.88/1,317,011.60 = 609,570.40/x
  3. Step 3: Cross multiply
    878,916.88x = 1,317,011.60 × 609,570.40
  4. Step 4: Simplify right side
    878,916.88x = 802,811,287,816.64
  5. Step 5: Solve for x
    x = 802,811,287,816.64/878,916.88
  6. Step 6: Final answer
    x = 913,409.80

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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.