Home / 909,381.86-1,364,072.70-510,053.78

Finding the Fourth Proportional to 909,381.86, 1,364,072.70 and 510,053.78

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Solution

The fourth proportional to 909,381.86, 1,364,072.70 and 510,053.78 is: 765,080.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,381.86 : 1,364,072.70 = 510,053.78 : x
  2. Step 2: Convert to fraction form
    909,381.86/1,364,072.70 = 510,053.78/x
  3. Step 3: Cross multiply
    909,381.86x = 1,364,072.70 × 510,053.78
  4. Step 4: Simplify right side
    909,381.86x = 695,750,430,009.44
  5. Step 5: Solve for x
    x = 695,750,430,009.44/909,381.86
  6. Step 6: Final answer
    x = 765,080.62

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1.5x scale

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.