Home / 698,437.12-1,047,323.76-319,246.72

Finding the Fourth Proportional to 698,437.12, 1,047,323.76 and 319,246.72

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Solution

The fourth proportional to 698,437.12, 1,047,323.76 and 319,246.72 is: 478,718.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,437.12 : 1,047,323.76 = 319,246.72 : x
  2. Step 2: Convert to fraction form
    698,437.12/1,047,323.76 = 319,246.72/x
  3. Step 3: Cross multiply
    698,437.12x = 1,047,323.76 × 319,246.72
  4. Step 4: Simplify right side
    698,437.12x = 334,354,675,158.07
  5. Step 5: Solve for x
    x = 334,354,675,158.07/698,437.12
  6. Step 6: Final answer
    x = 478,718.36

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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.