Home / 989,159.68-1,483,711.70-315,281.36

Finding the Fourth Proportional to 989,159.68, 1,483,711.70 and 315,281.36

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Solution

The fourth proportional to 989,159.68, 1,483,711.70 and 315,281.36 is: 472,913.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,159.68 : 1,483,711.70 = 315,281.36 : x
  2. Step 2: Convert to fraction form
    989,159.68/1,483,711.70 = 315,281.36/x
  3. Step 3: Cross multiply
    989,159.68x = 1,483,711.70 × 315,281.36
  4. Step 4: Simplify right side
    989,159.68x = 467,786,635,205.35
  5. Step 5: Solve for x
    x = 467,786,635,205.35/989,159.68
  6. Step 6: Final answer
    x = 472,913.17

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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.