Home / 931,320.48-1,285,376.88-549,441.12

Finding the Fourth Proportional to 931,320.48, 1,285,376.88 and 549,441.12

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Solution

The fourth proportional to 931,320.48, 1,285,376.88 and 549,441.12 is: 758,319.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,320.48 : 1,285,376.88 = 549,441.12 : x
  2. Step 2: Convert to fraction form
    931,320.48/1,285,376.88 = 549,441.12/x
  3. Step 3: Cross multiply
    931,320.48x = 1,285,376.88 × 549,441.12
  4. Step 4: Simplify right side
    931,320.48x = 706,238,912,569.31
  5. Step 5: Solve for x
    x = 706,238,912,569.31/931,320.48
  6. Step 6: Final answer
    x = 758,319.96

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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.