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Finding the Fourth Proportional to 1,977,483.54, 2,966,225.28 and 912,210.42

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Solution

The fourth proportional to 1,977,483.54, 2,966,225.28 and 912,210.42 is: 1,368,315.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977,483.54 : 2,966,225.28 = 912,210.42 : x
  2. Step 2: Convert to fraction form
    1,977,483.54/2,966,225.28 = 912,210.42/x
  3. Step 3: Cross multiply
    1,977,483.54x = 2,966,225.28 × 912,210.42
  4. Step 4: Simplify right side
    1,977,483.54x = 2,705,821,608,483.42
  5. Step 5: Solve for x
    x = 2,705,821,608,483.42/1,977,483.54
  6. Step 6: Final answer
    x = 1,368,315.62

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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.