Home / 898,985.53-1,240,637.75-517,012.62

Finding the Fourth Proportional to 898,985.53, 1,240,637.75 and 517,012.62

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Solution

The fourth proportional to 898,985.53, 1,240,637.75 and 517,012.62 is: 713,499.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,985.53 : 1,240,637.75 = 517,012.62 : x
  2. Step 2: Convert to fraction form
    898,985.53/1,240,637.75 = 517,012.62/x
  3. Step 3: Cross multiply
    898,985.53x = 1,240,637.75 × 517,012.62
  4. Step 4: Simplify right side
    898,985.53x = 641,425,373,598.41
  5. Step 5: Solve for x
    x = 641,425,373,598.41/898,985.53
  6. Step 6: Final answer
    x = 713,499.11

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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.