Home / 917,511.10-1,376,266.65-681,315.10

Finding the Fourth Proportional to 917,511.10, 1,376,266.65 and 681,315.10

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Solution

The fourth proportional to 917,511.10, 1,376,266.65 and 681,315.10 is: 1,021,972.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,511.10 : 1,376,266.65 = 681,315.10 : x
  2. Step 2: Convert to fraction form
    917,511.10/1,376,266.65 = 681,315.10/x
  3. Step 3: Cross multiply
    917,511.10x = 1,376,266.65 × 681,315.10
  4. Step 4: Simplify right side
    917,511.10x = 937,671,250,271.42
  5. Step 5: Solve for x
    x = 937,671,250,271.42/917,511.10
  6. Step 6: Final answer
    x = 1,021,972.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.