Home / 867,110.08-1,300,342.20-298,332.40

Finding the Fourth Proportional to 867,110.08, 1,300,342.20 and 298,332.40

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Solution

The fourth proportional to 867,110.08, 1,300,342.20 and 298,332.40 is: 447,387.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,110.08 : 1,300,342.20 = 298,332.40 : x
  2. Step 2: Convert to fraction form
    867,110.08/1,300,342.20 = 298,332.40/x
  3. Step 3: Cross multiply
    867,110.08x = 1,300,342.20 × 298,332.40
  4. Step 4: Simplify right side
    867,110.08x = 387,934,209,347.28
  5. Step 5: Solve for x
    x = 387,934,209,347.28/867,110.08
  6. Step 6: Final answer
    x = 447,387.50

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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.