Home / 1,272,028.65-1,908,013.04-312,482.75

Finding the Fourth Proportional to 1,272,028.65, 1,908,013.04 and 312,482.75

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Solution

The fourth proportional to 1,272,028.65, 1,908,013.04 and 312,482.75 is: 468,716.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,028.65 : 1,908,013.04 = 312,482.75 : x
  2. Step 2: Convert to fraction form
    1,272,028.65/1,908,013.04 = 312,482.75/x
  3. Step 3: Cross multiply
    1,272,028.65x = 1,908,013.04 × 312,482.75
  4. Step 4: Simplify right side
    1,272,028.65x = 596,221,153,746.87
  5. Step 5: Solve for x
    x = 596,221,153,746.87/1,272,028.65
  6. Step 6: Final answer
    x = 468,716.76

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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.