Home / 909,939.80-1,364,909.70-874,947.80

Finding the Fourth Proportional to 909,939.80, 1,364,909.70 and 874,947.80

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Solution

The fourth proportional to 909,939.80, 1,364,909.70 and 874,947.80 is: 1,312,421.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,939.80 : 1,364,909.70 = 874,947.80 : x
  2. Step 2: Convert to fraction form
    909,939.80/1,364,909.70 = 874,947.80/x
  3. Step 3: Cross multiply
    909,939.80x = 1,364,909.70 × 874,947.80
  4. Step 4: Simplify right side
    909,939.80x = 1,194,224,739,213.66
  5. Step 5: Solve for x
    x = 1,194,224,739,213.66/909,939.80
  6. Step 6: Final answer
    x = 1,312,421.70

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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.