Home / 975,715.40-1,463,135.70-442,962.20

Finding the Fourth Proportional to 975,715.40, 1,463,135.70 and 442,962.20

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Solution

The fourth proportional to 975,715.40, 1,463,135.70 and 442,962.20 is: 664,244.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    975,715.40 : 1,463,135.70 = 442,962.20 : x
  2. Step 2: Convert to fraction form
    975,715.40/1,463,135.70 = 442,962.20/x
  3. Step 3: Cross multiply
    975,715.40x = 1,463,135.70 × 442,962.20
  4. Step 4: Simplify right side
    975,715.40x = 648,113,808,570.54
  5. Step 5: Solve for x
    x = 648,113,808,570.54/975,715.40
  6. Step 6: Final answer
    x = 664,244.73

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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.