Home / 785,538.61-1,178,824.59-430,801.74

Finding the Fourth Proportional to 785,538.61, 1,178,824.59 and 430,801.74

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Solution

The fourth proportional to 785,538.61, 1,178,824.59 and 430,801.74 is: 646,485.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,538.61 : 1,178,824.59 = 430,801.74 : x
  2. Step 2: Convert to fraction form
    785,538.61/1,178,824.59 = 430,801.74/x
  3. Step 3: Cross multiply
    785,538.61x = 1,178,824.59 × 430,801.74
  4. Step 4: Simplify right side
    785,538.61x = 507,839,684,526.79
  5. Step 5: Solve for x
    x = 507,839,684,526.79/785,538.61
  6. Step 6: Final answer
    x = 646,485.96

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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.