Home / 949,088.21-1,309,699.73-519,386.45

Finding the Fourth Proportional to 949,088.21, 1,309,699.73 and 519,386.45

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Solution

The fourth proportional to 949,088.21, 1,309,699.73 and 519,386.45 is: 716,730.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    949,088.21 : 1,309,699.73 = 519,386.45 : x
  2. Step 2: Convert to fraction form
    949,088.21/1,309,699.73 = 519,386.45/x
  3. Step 3: Cross multiply
    949,088.21x = 1,309,699.73 × 519,386.45
  4. Step 4: Simplify right side
    949,088.21x = 680,240,288,080.63
  5. Step 5: Solve for x
    x = 680,240,288,080.63/949,088.21
  6. Step 6: Final answer
    x = 716,730.31

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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.