Home / 1,278,830.18-1,764,785.81-705,870.50

Finding the Fourth Proportional to 1,278,830.18, 1,764,785.81 and 705,870.50

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Solution

The fourth proportional to 1,278,830.18, 1,764,785.81 and 705,870.50 is: 974,101.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,830.18 : 1,764,785.81 = 705,870.50 : x
  2. Step 2: Convert to fraction form
    1,278,830.18/1,764,785.81 = 705,870.50/x
  3. Step 3: Cross multiply
    1,278,830.18x = 1,764,785.81 × 705,870.50
  4. Step 4: Simplify right side
    1,278,830.18x = 1,245,710,235,038.35
  5. Step 5: Solve for x
    x = 1,245,710,235,038.35/1,278,830.18
  6. Step 6: Final answer
    x = 974,101.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.