Home / 1,210,681.76-1,670,858.81-904,226.06

Finding the Fourth Proportional to 1,210,681.76, 1,670,858.81 and 904,226.06

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Solution

The fourth proportional to 1,210,681.76, 1,670,858.81 and 904,226.06 is: 1,247,920.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,681.76 : 1,670,858.81 = 904,226.06 : x
  2. Step 2: Convert to fraction form
    1,210,681.76/1,670,858.81 = 904,226.06/x
  3. Step 3: Cross multiply
    1,210,681.76x = 1,670,858.81 × 904,226.06
  4. Step 4: Simplify right side
    1,210,681.76x = 1,510,834,078,582.59
  5. Step 5: Solve for x
    x = 1,510,834,078,582.59/1,210,681.76
  6. Step 6: Final answer
    x = 1,247,920.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.