Home / 976,420.80-1,464,865.02-407,485.44

Finding the Fourth Proportional to 976,420.80, 1,464,865.02 and 407,485.44

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Solution

The fourth proportional to 976,420.80, 1,464,865.02 and 407,485.44 is: 611,325.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    976,420.80 : 1,464,865.02 = 407,485.44 : x
  2. Step 2: Convert to fraction form
    976,420.80/1,464,865.02 = 407,485.44/x
  3. Step 3: Cross multiply
    976,420.80x = 1,464,865.02 × 407,485.44
  4. Step 4: Simplify right side
    976,420.80x = 596,911,167,215.31
  5. Step 5: Solve for x
    x = 596,911,167,215.31/976,420.80
  6. Step 6: Final answer
    x = 611,325.74

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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.