Home / 1,095,905.40-1,642,691.70-421,726.20

Finding the Fourth Proportional to 1,095,905.40, 1,642,691.70 and 421,726.20

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Solution

The fourth proportional to 1,095,905.40, 1,642,691.70 and 421,726.20 is: 632,140.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095,905.40 : 1,642,691.70 = 421,726.20 : x
  2. Step 2: Convert to fraction form
    1,095,905.40/1,642,691.70 = 421,726.20/x
  3. Step 3: Cross multiply
    1,095,905.40x = 1,642,691.70 × 421,726.20
  4. Step 4: Simplify right side
    1,095,905.40x = 692,766,128,412.54
  5. Step 5: Solve for x
    x = 692,766,128,412.54/1,095,905.40
  6. Step 6: Final answer
    x = 632,140.45

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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.