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Finding the Fourth Proportional to 660,292.40, 911,225.58 and 369,916.52

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Solution

The fourth proportional to 660,292.40, 911,225.58 and 369,916.52 is: 510,497.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,292.40 : 911,225.58 = 369,916.52 : x
  2. Step 2: Convert to fraction form
    660,292.40/911,225.58 = 369,916.52/x
  3. Step 3: Cross multiply
    660,292.40x = 911,225.58 × 369,916.52
  4. Step 4: Simplify right side
    660,292.40x = 337,077,395,488.58
  5. Step 5: Solve for x
    x = 337,077,395,488.58/660,292.40
  6. Step 6: Final answer
    x = 510,497.16

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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.