Home / 853,066.46-1,280,387.02-432,637.58

Finding the Fourth Proportional to 853,066.46, 1,280,387.02 and 432,637.58

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Solution

The fourth proportional to 853,066.46, 1,280,387.02 and 432,637.58 is: 649,355.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,066.46 : 1,280,387.02 = 432,637.58 : x
  2. Step 2: Convert to fraction form
    853,066.46/1,280,387.02 = 432,637.58/x
  3. Step 3: Cross multiply
    853,066.46x = 1,280,387.02 × 432,637.58
  4. Step 4: Simplify right side
    853,066.46x = 553,943,541,796.21
  5. Step 5: Solve for x
    x = 553,943,541,796.21/853,066.46
  6. Step 6: Final answer
    x = 649,355.67

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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.