Home / 905,366.90-1,249,400.12-497,473.04

Finding the Fourth Proportional to 905,366.90, 1,249,400.12 and 497,473.04

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Solution

The fourth proportional to 905,366.90, 1,249,400.12 and 497,473.04 is: 686,509.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,366.90 : 1,249,400.12 = 497,473.04 : x
  2. Step 2: Convert to fraction form
    905,366.90/1,249,400.12 = 497,473.04/x
  3. Step 3: Cross multiply
    905,366.90x = 1,249,400.12 × 497,473.04
  4. Step 4: Simplify right side
    905,366.90x = 621,542,875,872.77
  5. Step 5: Solve for x
    x = 621,542,875,872.77/905,366.90
  6. Step 6: Final answer
    x = 686,509.39

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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.