Home / 745,587.48-1,028,939.85-423,327.60

Finding the Fourth Proportional to 745,587.48, 1,028,939.85 and 423,327.60

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Solution

The fourth proportional to 745,587.48, 1,028,939.85 and 423,327.60 is: 584,208.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,587.48 : 1,028,939.85 = 423,327.60 : x
  2. Step 2: Convert to fraction form
    745,587.48/1,028,939.85 = 423,327.60/x
  3. Step 3: Cross multiply
    745,587.48x = 1,028,939.85 × 423,327.60
  4. Step 4: Simplify right side
    745,587.48x = 435,578,637,244.86
  5. Step 5: Solve for x
    x = 435,578,637,244.86/745,587.48
  6. Step 6: Final answer
    x = 584,208.63

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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.