Home / 806,870.40-1,210,305.60-470,291.10

Finding the Fourth Proportional to 806,870.40, 1,210,305.60 and 470,291.10

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Solution

The fourth proportional to 806,870.40, 1,210,305.60 and 470,291.10 is: 705,436.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,870.40 : 1,210,305.60 = 470,291.10 : x
  2. Step 2: Convert to fraction form
    806,870.40/1,210,305.60 = 470,291.10/x
  3. Step 3: Cross multiply
    806,870.40x = 1,210,305.60 × 470,291.10
  4. Step 4: Simplify right side
    806,870.40x = 569,195,951,960.16
  5. Step 5: Solve for x
    x = 569,195,951,960.16/806,870.40
  6. Step 6: Final answer
    x = 705,436.65

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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.