Home / 1,051,628.70-1,574,332.65-990,111.90

Finding the Fourth Proportional to 1,051,628.70, 1,574,332.65 and 990,111.90

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Solution

The fourth proportional to 1,051,628.70, 1,574,332.65 and 990,111.90 is: 1,482,239.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,051,628.70 : 1,574,332.65 = 990,111.90 : x
  2. Step 2: Convert to fraction form
    1,051,628.70/1,574,332.65 = 990,111.90/x
  3. Step 3: Cross multiply
    1,051,628.70x = 1,574,332.65 × 990,111.90
  4. Step 4: Simplify right side
    1,051,628.70x = 1,558,765,491,323.54
  5. Step 5: Solve for x
    x = 1,558,765,491,323.54/1,051,628.70
  6. Step 6: Final answer
    x = 1,482,239.40

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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.