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Finding the Fourth Proportional to 652,235.20, 977,143.20 and 370,916.80

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Solution

The fourth proportional to 652,235.20, 977,143.20 and 370,916.80 is: 555,687.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,235.20 : 977,143.20 = 370,916.80 : x
  2. Step 2: Convert to fraction form
    652,235.20/977,143.20 = 370,916.80/x
  3. Step 3: Cross multiply
    652,235.20x = 977,143.20 × 370,916.80
  4. Step 4: Simplify right side
    652,235.20x = 362,438,828,885.76
  5. Step 5: Solve for x
    x = 362,438,828,885.76/652,235.20
  6. Step 6: Final answer
    x = 555,687.32

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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.