Home / 785,580.10-1,178,886.89-430,843.23

Finding the Fourth Proportional to 785,580.10, 1,178,886.89 and 430,843.23

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Solution

The fourth proportional to 785,580.10, 1,178,886.89 and 430,843.23 is: 646,548.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,580.10 : 1,178,886.89 = 430,843.23 : x
  2. Step 2: Convert to fraction form
    785,580.10/1,178,886.89 = 430,843.23/x
  3. Step 3: Cross multiply
    785,580.10x = 1,178,886.89 × 430,843.23
  4. Step 4: Simplify right side
    785,580.10x = 507,915,436,569.36
  5. Step 5: Solve for x
    x = 507,915,436,569.36/785,580.10
  6. Step 6: Final answer
    x = 646,548.25

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1.5x scale

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.