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Finding the Fourth Proportional to 523,312.40, 784,968.60 and 374,013.20

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Solution

The fourth proportional to 523,312.40, 784,968.60 and 374,013.20 is: 561,019.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,312.40 : 784,968.60 = 374,013.20 : x
  2. Step 2: Convert to fraction form
    523,312.40/784,968.60 = 374,013.20/x
  3. Step 3: Cross multiply
    523,312.40x = 784,968.60 × 374,013.20
  4. Step 4: Simplify right side
    523,312.40x = 293,588,617,985.52
  5. Step 5: Solve for x
    x = 293,588,617,985.52/523,312.40
  6. Step 6: Final answer
    x = 561,019.80

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Similar ratio
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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.