Home / 989,167.80-1,483,723.89-315,289.50

Finding the Fourth Proportional to 989,167.80, 1,483,723.89 and 315,289.50

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Solution

The fourth proportional to 989,167.80, 1,483,723.89 and 315,289.50 is: 472,925.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,167.80 : 1,483,723.89 = 315,289.50 : x
  2. Step 2: Convert to fraction form
    989,167.80/1,483,723.89 = 315,289.50/x
  3. Step 3: Cross multiply
    989,167.80x = 1,483,723.89 × 315,289.50
  4. Step 4: Simplify right side
    989,167.80x = 467,802,563,416.16
  5. Step 5: Solve for x
    x = 467,802,563,416.16/989,167.80
  6. Step 6: Final answer
    x = 472,925.39

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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.