Home / 1,311,689.72-1,810,967.55-1,070,547.46

Finding the Fourth Proportional to 1,311,689.72, 1,810,967.55 and 1,070,547.46

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Solution

The fourth proportional to 1,311,689.72, 1,810,967.55 and 1,070,547.46 is: 1,478,037.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,311,689.72 : 1,810,967.55 = 1,070,547.46 : x
  2. Step 2: Convert to fraction form
    1,311,689.72/1,810,967.55 = 1,070,547.46/x
  3. Step 3: Cross multiply
    1,311,689.72x = 1,810,967.55 × 1,070,547.46
  4. Step 4: Simplify right side
    1,311,689.72x = 1,938,726,710,794.92
  5. Step 5: Solve for x
    x = 1,938,726,710,794.92/1,311,689.72
  6. Step 6: Final answer
    x = 1,478,037.59

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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.