Home / 1,258,590.30-1,888,158.84-459,870.58

Finding the Fourth Proportional to 1,258,590.30, 1,888,158.84 and 459,870.58

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Solution

The fourth proportional to 1,258,590.30, 1,888,158.84 and 459,870.58 is: 689,905.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,590.30 : 1,888,158.84 = 459,870.58 : x
  2. Step 2: Convert to fraction form
    1,258,590.30/1,888,158.84 = 459,870.58/x
  3. Step 3: Cross multiply
    1,258,590.30x = 1,888,158.84 × 459,870.58
  4. Step 4: Simplify right side
    1,258,590.30x = 868,308,700,882.93
  5. Step 5: Solve for x
    x = 868,308,700,882.93/1,258,590.30
  6. Step 6: Final answer
    x = 689,905.76

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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.