Home / 989,510.89-1,485,226.13-477,536.33

Finding the Fourth Proportional to 989,510.89, 1,485,226.13 and 477,536.33

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Solution

The fourth proportional to 989,510.89, 1,485,226.13 and 477,536.33 is: 716,767.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,510.89 : 1,485,226.13 = 477,536.33 : x
  2. Step 2: Convert to fraction form
    989,510.89/1,485,226.13 = 477,536.33/x
  3. Step 3: Cross multiply
    989,510.89x = 1,485,226.13 × 477,536.33
  4. Step 4: Simplify right side
    989,510.89x = 709,249,435,340.30
  5. Step 5: Solve for x
    x = 709,249,435,340.30/989,510.89
  6. Step 6: Final answer
    x = 716,767.69

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Double scale
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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.