Home / 690,435.60-1,034,326.56-423,417.48

Finding the Fourth Proportional to 690,435.60, 1,034,326.56 and 423,417.48

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Solution

The fourth proportional to 690,435.60, 1,034,326.56 and 423,417.48 is: 634,312.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,435.60 : 1,034,326.56 = 423,417.48 : x
  2. Step 2: Convert to fraction form
    690,435.60/1,034,326.56 = 423,417.48/x
  3. Step 3: Cross multiply
    690,435.60x = 1,034,326.56 × 423,417.48
  4. Step 4: Simplify right side
    690,435.60x = 437,951,945,532.27
  5. Step 5: Solve for x
    x = 437,951,945,532.27/690,435.60
  6. Step 6: Final answer
    x = 634,312.52

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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.