Home / 758,365.12-1,046,543.52-418,830.40

Finding the Fourth Proportional to 758,365.12, 1,046,543.52 and 418,830.40

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Solution

The fourth proportional to 758,365.12, 1,046,543.52 and 418,830.40 is: 577,985.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,365.12 : 1,046,543.52 = 418,830.40 : x
  2. Step 2: Convert to fraction form
    758,365.12/1,046,543.52 = 418,830.40/x
  3. Step 3: Cross multiply
    758,365.12x = 1,046,543.52 × 418,830.40
  4. Step 4: Simplify right side
    758,365.12x = 438,324,241,099.01
  5. Step 5: Solve for x
    x = 438,324,241,099.01/758,365.12
  6. Step 6: Final answer
    x = 577,985.76

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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.