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Finding the Fourth Proportional to 515,359.58, 772,665.50 and 346,460.88

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Solution

The fourth proportional to 515,359.58, 772,665.50 and 346,460.88 is: 519,439.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,359.58 : 772,665.50 = 346,460.88 : x
  2. Step 2: Convert to fraction form
    515,359.58/772,665.50 = 346,460.88/x
  3. Step 3: Cross multiply
    515,359.58x = 772,665.50 × 346,460.88
  4. Step 4: Simplify right side
    515,359.58x = 267,698,369,075.64
  5. Step 5: Solve for x
    x = 267,698,369,075.64/515,359.58
  6. Step 6: Final answer
    x = 519,439.98

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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.