Home / 920,869.38-1,270,750.05-507,392.33

Finding the Fourth Proportional to 920,869.38, 1,270,750.05 and 507,392.33

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Solution

The fourth proportional to 920,869.38, 1,270,750.05 and 507,392.33 is: 700,174.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,869.38 : 1,270,750.05 = 507,392.33 : x
  2. Step 2: Convert to fraction form
    920,869.38/1,270,750.05 = 507,392.33/x
  3. Step 3: Cross multiply
    920,869.38x = 1,270,750.05 × 507,392.33
  4. Step 4: Simplify right side
    920,869.38x = 644,768,822,363.37
  5. Step 5: Solve for x
    x = 644,768,822,363.37/920,869.38
  6. Step 6: Final answer
    x = 700,174.03

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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.