Home / 1,090,133.07-1,635,206.90-380,158.35

Finding the Fourth Proportional to 1,090,133.07, 1,635,206.90 and 380,158.35

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Solution

The fourth proportional to 1,090,133.07, 1,635,206.90 and 380,158.35 is: 570,240.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,133.07 : 1,635,206.90 = 380,158.35 : x
  2. Step 2: Convert to fraction form
    1,090,133.07/1,635,206.90 = 380,158.35/x
  3. Step 3: Cross multiply
    1,090,133.07x = 1,635,206.90 × 380,158.35
  4. Step 4: Simplify right side
    1,090,133.07x = 621,637,555,111.82
  5. Step 5: Solve for x
    x = 621,637,555,111.82/1,090,133.07
  6. Step 6: Final answer
    x = 570,240.07

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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.