Home / 756,813.60-1,133,252.10-489,124.80

Finding the Fourth Proportional to 756,813.60, 1,133,252.10 and 489,124.80

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Solution

The fourth proportional to 756,813.60, 1,133,252.10 and 489,124.80 is: 732,415.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,813.60 : 1,133,252.10 = 489,124.80 : x
  2. Step 2: Convert to fraction form
    756,813.60/1,133,252.10 = 489,124.80/x
  3. Step 3: Cross multiply
    756,813.60x = 1,133,252.10 × 489,124.80
  4. Step 4: Simplify right side
    756,813.60x = 554,301,706,762.08
  5. Step 5: Solve for x
    x = 554,301,706,762.08/756,813.60
  6. Step 6: Final answer
    x = 732,415.10

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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.