Home / 1,528,718.22-2,109,657.96-840,419.01

Finding the Fourth Proportional to 1,528,718.22, 2,109,657.96 and 840,419.01

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Solution

The fourth proportional to 1,528,718.22, 2,109,657.96 and 840,419.01 is: 1,159,792.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,718.22 : 2,109,657.96 = 840,419.01 : x
  2. Step 2: Convert to fraction form
    1,528,718.22/2,109,657.96 = 840,419.01/x
  3. Step 3: Cross multiply
    1,528,718.22x = 2,109,657.96 × 840,419.01
  4. Step 4: Simplify right side
    1,528,718.22x = 1,772,996,654,181.82
  5. Step 5: Solve for x
    x = 1,772,996,654,181.82/1,528,718.22
  6. Step 6: Final answer
    x = 1,159,792.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.