Home / 715,501.21-1,071,480.32-525,511.05

Finding the Fourth Proportional to 715,501.21, 1,071,480.32 and 525,511.05

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Solution

The fourth proportional to 715,501.21, 1,071,480.32 and 525,511.05 is: 786,965.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,501.21 : 1,071,480.32 = 525,511.05 : x
  2. Step 2: Convert to fraction form
    715,501.21/1,071,480.32 = 525,511.05/x
  3. Step 3: Cross multiply
    715,501.21x = 1,071,480.32 × 525,511.05
  4. Step 4: Simplify right side
    715,501.21x = 563,074,748,017.54
  5. Step 5: Solve for x
    x = 563,074,748,017.54/715,501.21
  6. Step 6: Final answer
    x = 786,965.47

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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.