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Finding the Fourth Proportional to 556,048.80, 767,348.64 and 301,398.84

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Solution

The fourth proportional to 556,048.80, 767,348.64 and 301,398.84 is: 415,931.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,048.80 : 767,348.64 = 301,398.84 : x
  2. Step 2: Convert to fraction form
    556,048.80/767,348.64 = 301,398.84/x
  3. Step 3: Cross multiply
    556,048.80x = 767,348.64 × 301,398.84
  4. Step 4: Simplify right side
    556,048.80x = 231,277,989,971.58
  5. Step 5: Solve for x
    x = 231,277,989,971.58/556,048.80
  6. Step 6: Final answer
    x = 415,931.10

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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.