Home / 1,505,307.05-2,077,338.68-816,985.01

Finding the Fourth Proportional to 1,505,307.05, 2,077,338.68 and 816,985.01

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Solution

The fourth proportional to 1,505,307.05, 2,077,338.68 and 816,985.01 is: 1,127,447.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,505,307.05 : 2,077,338.68 = 816,985.01 : x
  2. Step 2: Convert to fraction form
    1,505,307.05/2,077,338.68 = 816,985.01/x
  3. Step 3: Cross multiply
    1,505,307.05x = 2,077,338.68 × 816,985.01
  4. Step 4: Simplify right side
    1,505,307.05x = 1,697,154,547,781.57
  5. Step 5: Solve for x
    x = 1,697,154,547,781.57/1,505,307.05
  6. Step 6: Final answer
    x = 1,127,447.42

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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.