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Finding the Fourth Proportional to 616,584.64, 850,911.60 and 358,460.32

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Solution

The fourth proportional to 616,584.64, 850,911.60 and 358,460.32 is: 494,689.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,584.64 : 850,911.60 = 358,460.32 : x
  2. Step 2: Convert to fraction form
    616,584.64/850,911.60 = 358,460.32/x
  3. Step 3: Cross multiply
    616,584.64x = 850,911.60 × 358,460.32
  4. Step 4: Simplify right side
    616,584.64x = 305,018,044,427.71
  5. Step 5: Solve for x
    x = 305,018,044,427.71/616,584.64
  6. Step 6: Final answer
    x = 494,689.66

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1.5x scale

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.