Home / 715,500.21-1,071,478.82-525,510.05

Finding the Fourth Proportional to 715,500.21, 1,071,478.82 and 525,510.05

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Solution

The fourth proportional to 715,500.21, 1,071,478.82 and 525,510.05 is: 786,963.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,500.21 : 1,071,478.82 = 525,510.05 : x
  2. Step 2: Convert to fraction form
    715,500.21/1,071,478.82 = 525,510.05/x
  3. Step 3: Cross multiply
    715,500.21x = 1,071,478.82 × 525,510.05
  4. Step 4: Simplify right side
    715,500.21x = 563,072,888,272.14
  5. Step 5: Solve for x
    x = 563,072,888,272.14/715,500.21
  6. Step 6: Final answer
    x = 786,963.97

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1.5x scale

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.