Home / 840,457.05-1,254,130.44-749,877.03

Finding the Fourth Proportional to 840,457.05, 1,254,130.44 and 749,877.03

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Solution

The fourth proportional to 840,457.05, 1,254,130.44 and 749,877.03 is: 1,118,966.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,457.05 : 1,254,130.44 = 749,877.03 : x
  2. Step 2: Convert to fraction form
    840,457.05/1,254,130.44 = 749,877.03/x
  3. Step 3: Cross multiply
    840,457.05x = 1,254,130.44 × 749,877.03
  4. Step 4: Simplify right side
    840,457.05x = 940,443,609,579.79
  5. Step 5: Solve for x
    x = 940,443,609,579.79/840,457.05
  6. Step 6: Final answer
    x = 1,118,966.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.