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Finding the Fourth Proportional to 615,615.18, 849,315.15 and 373,806.06

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Solution

The fourth proportional to 615,615.18, 849,315.15 and 373,806.06 is: 515,710.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,615.18 : 849,315.15 = 373,806.06 : x
  2. Step 2: Convert to fraction form
    615,615.18/849,315.15 = 373,806.06/x
  3. Step 3: Cross multiply
    615,615.18x = 849,315.15 × 373,806.06
  4. Step 4: Simplify right side
    615,615.18x = 317,479,149,919.81
  5. Step 5: Solve for x
    x = 317,479,149,919.81/615,615.18
  6. Step 6: Final answer
    x = 515,710.40

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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.