Home / 909,100.80-1,254,526.38-495,628.74

Finding the Fourth Proportional to 909,100.80, 1,254,526.38 and 495,628.74

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Solution

The fourth proportional to 909,100.80, 1,254,526.38 and 495,628.74 is: 683,949.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,100.80 : 1,254,526.38 = 495,628.74 : x
  2. Step 2: Convert to fraction form
    909,100.80/1,254,526.38 = 495,628.74/x
  3. Step 3: Cross multiply
    909,100.80x = 1,254,526.38 × 495,628.74
  4. Step 4: Simplify right side
    909,100.80x = 621,779,329,016.16
  5. Step 5: Solve for x
    x = 621,779,329,016.16/909,100.80
  6. Step 6: Final answer
    x = 683,949.82

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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.