Home / 1,453,270.40-2,178,921.45-742,714.10

Finding the Fourth Proportional to 1,453,270.40, 2,178,921.45 and 742,714.10

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Solution

The fourth proportional to 1,453,270.40, 2,178,921.45 and 742,714.10 is: 1,113,568.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,453,270.40 : 2,178,921.45 = 742,714.10 : x
  2. Step 2: Convert to fraction form
    1,453,270.40/2,178,921.45 = 742,714.10/x
  3. Step 3: Cross multiply
    1,453,270.40x = 2,178,921.45 × 742,714.10
  4. Step 4: Simplify right side
    1,453,270.40x = 1,618,315,683,707.45
  5. Step 5: Solve for x
    x = 1,618,315,683,707.45/1,453,270.40
  6. Step 6: Final answer
    x = 1,113,568.19

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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.