Home / 1,030,371-1,421,428.14-728,731.32

Finding the Fourth Proportional to 1,030,371, 1,421,428.14 and 728,731.32

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Solution

The fourth proportional to 1,030,371, 1,421,428.14 and 728,731.32 is: 1,005,307.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,030,371 : 1,421,428.14 = 728,731.32 : x
  2. Step 2: Convert to fraction form
    1,030,371/1,421,428.14 = 728,731.32/x
  3. Step 3: Cross multiply
    1,030,371x = 1,421,428.14 × 728,731.32
  4. Step 4: Simplify right side
    1,030,371x = 1,035,839,204,747.34
  5. Step 5: Solve for x
    x = 1,035,839,204,747.34/1,030,371
  6. Step 6: Final answer
    x = 1,005,307.03

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1.5x scale

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.