Home / 870,427.72-1,201,244.64-502,920.64

Finding the Fourth Proportional to 870,427.72, 1,201,244.64 and 502,920.64

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Solution

The fourth proportional to 870,427.72, 1,201,244.64 and 502,920.64 is: 694,061.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,427.72 : 1,201,244.64 = 502,920.64 : x
  2. Step 2: Convert to fraction form
    870,427.72/1,201,244.64 = 502,920.64/x
  3. Step 3: Cross multiply
    870,427.72x = 1,201,244.64 × 502,920.64
  4. Step 4: Simplify right side
    870,427.72x = 604,130,723,145.37
  5. Step 5: Solve for x
    x = 604,130,723,145.37/870,427.72
  6. Step 6: Final answer
    x = 694,061.91

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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.