Home / 900,107.94-1,242,136.86-512,946.41

Finding the Fourth Proportional to 900,107.94, 1,242,136.86 and 512,946.41

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Solution

The fourth proportional to 900,107.94, 1,242,136.86 and 512,946.41 is: 707,859.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,107.94 : 1,242,136.86 = 512,946.41 : x
  2. Step 2: Convert to fraction form
    900,107.94/1,242,136.86 = 512,946.41/x
  3. Step 3: Cross multiply
    900,107.94x = 1,242,136.86 × 512,946.41
  4. Step 4: Simplify right side
    900,107.94x = 637,149,636,854.99
  5. Step 5: Solve for x
    x = 637,149,636,854.99/900,107.94
  6. Step 6: Final answer
    x = 707,859.15

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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.