Home / 979,901.16-1,470,041.28-340,227.96

Finding the Fourth Proportional to 979,901.16, 1,470,041.28 and 340,227.96

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Solution

The fourth proportional to 979,901.16, 1,470,041.28 and 340,227.96 is: 510,407.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,901.16 : 1,470,041.28 = 340,227.96 : x
  2. Step 2: Convert to fraction form
    979,901.16/1,470,041.28 = 340,227.96/x
  3. Step 3: Cross multiply
    979,901.16x = 1,470,041.28 × 340,227.96
  4. Step 4: Simplify right side
    979,901.16x = 500,149,145,810.19
  5. Step 5: Solve for x
    x = 500,149,145,810.19/979,901.16
  6. Step 6: Final answer
    x = 510,407.75

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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.