Home / 785,564.76-1,178,863.82-430,827.90

Finding the Fourth Proportional to 785,564.76, 1,178,863.82 and 430,827.90

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Solution

The fourth proportional to 785,564.76, 1,178,863.82 and 430,827.90 is: 646,525.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,564.76 : 1,178,863.82 = 430,827.90 : x
  2. Step 2: Convert to fraction form
    785,564.76/1,178,863.82 = 430,827.90/x
  3. Step 3: Cross multiply
    785,564.76x = 1,178,863.82 × 430,827.90
  4. Step 4: Simplify right side
    785,564.76x = 507,887,421,420.71
  5. Step 5: Solve for x
    x = 507,887,421,420.71/785,564.76
  6. Step 6: Final answer
    x = 646,525.21

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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.