Home / 487,276.41-731,018.93-145,746.63

Finding the Fourth Proportional to 487,276.41, 731,018.93 and 145,746.63

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Solution

The fourth proportional to 487,276.41, 731,018.93 and 145,746.63 is: 218,651.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,276.41 : 731,018.93 = 145,746.63 : x
  2. Step 2: Convert to fraction form
    487,276.41/731,018.93 = 145,746.63/x
  3. Step 3: Cross multiply
    487,276.41x = 731,018.93 × 145,746.63
  4. Step 4: Simplify right side
    487,276.41x = 106,543,549,305.26
  5. Step 5: Solve for x
    x = 106,543,549,305.26/487,276.41
  6. Step 6: Final answer
    x = 218,651.15

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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.