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Finding the Fourth Proportional to 819,594.40, 1,229,370 and 346,152.64

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Solution

The fourth proportional to 819,594.40, 1,229,370 and 346,152.64 is: 519,219.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,594.40 : 1,229,370 = 346,152.64 : x
  2. Step 2: Convert to fraction form
    819,594.40/1,229,370 = 346,152.64/x
  3. Step 3: Cross multiply
    819,594.40x = 1,229,370 × 346,152.64
  4. Step 4: Simplify right side
    819,594.40x = 425,549,671,036.80
  5. Step 5: Solve for x
    x = 425,549,671,036.80/819,594.40
  6. Step 6: Final answer
    x = 519,219.84

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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.