Home / 1,265,415.36-1,746,307.50-775,376.40

Finding the Fourth Proportional to 1,265,415.36, 1,746,307.50 and 775,376.40

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Solution

The fourth proportional to 1,265,415.36, 1,746,307.50 and 775,376.40 is: 1,070,040.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,415.36 : 1,746,307.50 = 775,376.40 : x
  2. Step 2: Convert to fraction form
    1,265,415.36/1,746,307.50 = 775,376.40/x
  3. Step 3: Cross multiply
    1,265,415.36x = 1,746,307.50 × 775,376.40
  4. Step 4: Simplify right side
    1,265,415.36x = 1,354,045,622,643
  5. Step 5: Solve for x
    x = 1,354,045,622,643/1,265,415.36
  6. Step 6: Final answer
    x = 1,070,040.45

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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.