Home / 1,428,931.53-1,971,028.54-847,743.19

Finding the Fourth Proportional to 1,428,931.53, 1,971,028.54 and 847,743.19

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Solution

The fourth proportional to 1,428,931.53, 1,971,028.54 and 847,743.19 is: 1,169,353.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,931.53 : 1,971,028.54 = 847,743.19 : x
  2. Step 2: Convert to fraction form
    1,428,931.53/1,971,028.54 = 847,743.19/x
  3. Step 3: Cross multiply
    1,428,931.53x = 1,971,028.54 × 847,743.19
  4. Step 4: Simplify right side
    1,428,931.53x = 1,670,926,022,080.64
  5. Step 5: Solve for x
    x = 1,670,926,022,080.64/1,428,931.53
  6. Step 6: Final answer
    x = 1,169,353.46

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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.