Home / 1,272,785.81-1,908,678.33-462,978

Finding the Fourth Proportional to 1,272,785.81, 1,908,678.33 and 462,978

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Solution

The fourth proportional to 1,272,785.81, 1,908,678.33 and 462,978 is: 694,284.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,785.81 : 1,908,678.33 = 462,978 : x
  2. Step 2: Convert to fraction form
    1,272,785.81/1,908,678.33 = 462,978/x
  3. Step 3: Cross multiply
    1,272,785.81x = 1,908,678.33 × 462,978
  4. Step 4: Simplify right side
    1,272,785.81x = 883,676,075,866.74
  5. Step 5: Solve for x
    x = 883,676,075,866.74/1,272,785.81
  6. Step 6: Final answer
    x = 694,284.99

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.