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Finding the Fourth Proportional to 453,897.40, 681,502.20 and 342,360.40

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Solution

The fourth proportional to 453,897.40, 681,502.20 and 342,360.40 is: 514,035.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,897.40 : 681,502.20 = 342,360.40 : x
  2. Step 2: Convert to fraction form
    453,897.40/681,502.20 = 342,360.40/x
  3. Step 3: Cross multiply
    453,897.40x = 681,502.20 × 342,360.40
  4. Step 4: Simplify right side
    453,897.40x = 233,319,365,792.88
  5. Step 5: Solve for x
    x = 233,319,365,792.88/453,897.40
  6. Step 6: Final answer
    x = 514,035.48

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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.