Home / 920,531.70-1,379,501.55-731,315.70

Finding the Fourth Proportional to 920,531.70, 1,379,501.55 and 731,315.70

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Solution

The fourth proportional to 920,531.70, 1,379,501.55 and 731,315.70 is: 1,095,943.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,531.70 : 1,379,501.55 = 731,315.70 : x
  2. Step 2: Convert to fraction form
    920,531.70/1,379,501.55 = 731,315.70/x
  3. Step 3: Cross multiply
    920,531.70x = 1,379,501.55 × 731,315.70
  4. Step 4: Simplify right side
    920,531.70x = 1,008,851,141,689.34
  5. Step 5: Solve for x
    x = 1,008,851,141,689.34/920,531.70
  6. Step 6: Final answer
    x = 1,095,943.94

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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.