Home / 847,852.21-1,170,035.78-465,903.60

Finding the Fourth Proportional to 847,852.21, 1,170,035.78 and 465,903.60

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Solution

The fourth proportional to 847,852.21, 1,170,035.78 and 465,903.60 is: 642,946.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,852.21 : 1,170,035.78 = 465,903.60 : x
  2. Step 2: Convert to fraction form
    847,852.21/1,170,035.78 = 465,903.60/x
  3. Step 3: Cross multiply
    847,852.21x = 1,170,035.78 × 465,903.60
  4. Step 4: Simplify right side
    847,852.21x = 545,123,882,030.81
  5. Step 5: Solve for x
    x = 545,123,882,030.81/847,852.21
  6. Step 6: Final answer
    x = 642,946.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.