Home / 781,042.50-1,077,530.58-490,483.17

Finding the Fourth Proportional to 781,042.50, 1,077,530.58 and 490,483.17

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Solution

The fourth proportional to 781,042.50, 1,077,530.58 and 490,483.17 is: 676,673.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,042.50 : 1,077,530.58 = 490,483.17 : x
  2. Step 2: Convert to fraction form
    781,042.50/1,077,530.58 = 490,483.17/x
  3. Step 3: Cross multiply
    781,042.50x = 1,077,530.58 × 490,483.17
  4. Step 4: Simplify right side
    781,042.50x = 528,510,614,650.34
  5. Step 5: Solve for x
    x = 528,510,614,650.34/781,042.50
  6. Step 6: Final answer
    x = 676,673.31

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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.