Home / 1,700,870.40-2,551,305.60-689,990.40

Finding the Fourth Proportional to 1,700,870.40, 2,551,305.60 and 689,990.40

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Solution

The fourth proportional to 1,700,870.40, 2,551,305.60 and 689,990.40 is: 1,034,985.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,700,870.40 : 2,551,305.60 = 689,990.40 : x
  2. Step 2: Convert to fraction form
    1,700,870.40/2,551,305.60 = 689,990.40/x
  3. Step 3: Cross multiply
    1,700,870.40x = 2,551,305.60 × 689,990.40
  4. Step 4: Simplify right side
    1,700,870.40x = 1,760,376,371,466.24
  5. Step 5: Solve for x
    x = 1,760,376,371,466.24/1,700,870.40
  6. Step 6: Final answer
    x = 1,034,985.60

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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.