Home / 907,321.81-1,252,056.37-499,345.66

Finding the Fourth Proportional to 907,321.81, 1,252,056.37 and 499,345.66

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Solution

The fourth proportional to 907,321.81, 1,252,056.37 and 499,345.66 is: 689,070.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,321.81 : 1,252,056.37 = 499,345.66 : x
  2. Step 2: Convert to fraction form
    907,321.81/1,252,056.37 = 499,345.66/x
  3. Step 3: Cross multiply
    907,321.81x = 1,252,056.37 × 499,345.66
  4. Step 4: Simplify right side
    907,321.81x = 625,208,911,938.13
  5. Step 5: Solve for x
    x = 625,208,911,938.13/907,321.81
  6. Step 6: Final answer
    x = 689,070.74

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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.