Home / 1,090,391.80-1,635,587.70-425,543.80

Finding the Fourth Proportional to 1,090,391.80, 1,635,587.70 and 425,543.80

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Solution

The fourth proportional to 1,090,391.80, 1,635,587.70 and 425,543.80 is: 638,315.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,391.80 : 1,635,587.70 = 425,543.80 : x
  2. Step 2: Convert to fraction form
    1,090,391.80/1,635,587.70 = 425,543.80/x
  3. Step 3: Cross multiply
    1,090,391.80x = 1,635,587.70 × 425,543.80
  4. Step 4: Simplify right side
    1,090,391.80x = 696,014,205,091.26
  5. Step 5: Solve for x
    x = 696,014,205,091.26/1,090,391.80
  6. Step 6: Final answer
    x = 638,315.70

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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.