Home / 1,315,935.60-1,973,903.40-517,243.20

Finding the Fourth Proportional to 1,315,935.60, 1,973,903.40 and 517,243.20

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Solution

The fourth proportional to 1,315,935.60, 1,973,903.40 and 517,243.20 is: 775,864.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,935.60 : 1,973,903.40 = 517,243.20 : x
  2. Step 2: Convert to fraction form
    1,315,935.60/1,973,903.40 = 517,243.20/x
  3. Step 3: Cross multiply
    1,315,935.60x = 1,973,903.40 × 517,243.20
  4. Step 4: Simplify right side
    1,315,935.60x = 1,020,988,111,106.88
  5. Step 5: Solve for x
    x = 1,020,988,111,106.88/1,315,935.60
  6. Step 6: Final answer
    x = 775,864.80

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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.