Home / 670,135.06-924,920.87-398,150.57

Finding the Fourth Proportional to 670,135.06, 924,920.87 and 398,150.57

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Solution

The fourth proportional to 670,135.06, 924,920.87 and 398,150.57 is: 549,527.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,135.06 : 924,920.87 = 398,150.57 : x
  2. Step 2: Convert to fraction form
    670,135.06/924,920.87 = 398,150.57/x
  3. Step 3: Cross multiply
    670,135.06x = 924,920.87 × 398,150.57
  4. Step 4: Simplify right side
    670,135.06x = 368,257,774,903.08
  5. Step 5: Solve for x
    x = 368,257,774,903.08/670,135.06
  6. Step 6: Final answer
    x = 549,527.70

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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.