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Finding the Fourth Proportional to 868,364.40, 1,302,560.04 and 307,006.32

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Solution

The fourth proportional to 868,364.40, 1,302,560.04 and 307,006.32 is: 460,514.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,364.40 : 1,302,560.04 = 307,006.32 : x
  2. Step 2: Convert to fraction form
    868,364.40/1,302,560.04 = 307,006.32/x
  3. Step 3: Cross multiply
    868,364.40x = 1,302,560.04 × 307,006.32
  4. Step 4: Simplify right side
    868,364.40x = 399,894,164,459.45
  5. Step 5: Solve for x
    x = 399,894,164,459.45/868,364.40
  6. Step 6: Final answer
    x = 460,514.23

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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.