Home / 1,230,347.80-1,845,510.60-388,899.80

Finding the Fourth Proportional to 1,230,347.80, 1,845,510.60 and 388,899.80

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Solution

The fourth proportional to 1,230,347.80, 1,845,510.60 and 388,899.80 is: 583,346.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,347.80 : 1,845,510.60 = 388,899.80 : x
  2. Step 2: Convert to fraction form
    1,230,347.80/1,845,510.60 = 388,899.80/x
  3. Step 3: Cross multiply
    1,230,347.80x = 1,845,510.60 × 388,899.80
  4. Step 4: Simplify right side
    1,230,347.80x = 717,718,703,237.88
  5. Step 5: Solve for x
    x = 717,718,703,237.88/1,230,347.80
  6. Step 6: Final answer
    x = 583,346.19

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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.