Home / 977,435.20-1,466,079.90-408,669.40

Finding the Fourth Proportional to 977,435.20, 1,466,079.90 and 408,669.40

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Solution

The fourth proportional to 977,435.20, 1,466,079.90 and 408,669.40 is: 612,973.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,435.20 : 1,466,079.90 = 408,669.40 : x
  2. Step 2: Convert to fraction form
    977,435.20/1,466,079.90 = 408,669.40/x
  3. Step 3: Cross multiply
    977,435.20x = 1,466,079.90 × 408,669.40
  4. Step 4: Simplify right side
    977,435.20x = 599,141,993,085.06
  5. Step 5: Solve for x
    x = 599,141,993,085.06/977,435.20
  6. Step 6: Final answer
    x = 612,973.62

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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.