Home / 785,117.10-1,178,064.45-448,416.30

Finding the Fourth Proportional to 785,117.10, 1,178,064.45 and 448,416.30

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Solution

The fourth proportional to 785,117.10, 1,178,064.45 and 448,416.30 is: 672,846.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,117.10 : 1,178,064.45 = 448,416.30 : x
  2. Step 2: Convert to fraction form
    785,117.10/1,178,064.45 = 448,416.30/x
  3. Step 3: Cross multiply
    785,117.10x = 1,178,064.45 × 448,416.30
  4. Step 4: Simplify right side
    785,117.10x = 528,263,301,830.54
  5. Step 5: Solve for x
    x = 528,263,301,830.54/785,117.10
  6. Step 6: Final answer
    x = 672,846.51

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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.