Home / 1,388,916.59-2,083,574.48-429,447.02

Finding the Fourth Proportional to 1,388,916.59, 2,083,574.48 and 429,447.02

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Solution

The fourth proportional to 1,388,916.59, 2,083,574.48 and 429,447.02 is: 644,232.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,916.59 : 2,083,574.48 = 429,447.02 : x
  2. Step 2: Convert to fraction form
    1,388,916.59/2,083,574.48 = 429,447.02/x
  3. Step 3: Cross multiply
    1,388,916.59x = 2,083,574.48 × 429,447.02
  4. Step 4: Simplify right side
    1,388,916.59x = 894,784,838,818.94
  5. Step 5: Solve for x
    x = 894,784,838,818.94/1,388,916.59
  6. Step 6: Final answer
    x = 644,232.24

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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.