Home / 903,979.44-1,355,903.10-424,316.52

Finding the Fourth Proportional to 903,979.44, 1,355,903.10 and 424,316.52

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Solution

The fourth proportional to 903,979.44, 1,355,903.10 and 424,316.52 is: 636,443.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,979.44 : 1,355,903.10 = 424,316.52 : x
  2. Step 2: Convert to fraction form
    903,979.44/1,355,903.10 = 424,316.52/x
  3. Step 3: Cross multiply
    903,979.44x = 1,355,903.10 × 424,316.52
  4. Step 4: Simplify right side
    903,979.44x = 575,332,084,849.21
  5. Step 5: Solve for x
    x = 575,332,084,849.21/903,979.44
  6. Step 6: Final answer
    x = 636,443.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.