Home / 977,770.82-1,349,326.73-542,218.83

Finding the Fourth Proportional to 977,770.82, 1,349,326.73 and 542,218.83

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Solution

The fourth proportional to 977,770.82, 1,349,326.73 and 542,218.83 is: 748,263.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,770.82 : 1,349,326.73 = 542,218.83 : x
  2. Step 2: Convert to fraction form
    977,770.82/1,349,326.73 = 542,218.83/x
  3. Step 3: Cross multiply
    977,770.82x = 1,349,326.73 × 542,218.83
  4. Step 4: Simplify right side
    977,770.82x = 731,630,366,983.85
  5. Step 5: Solve for x
    x = 731,630,366,983.85/977,770.82
  6. Step 6: Final answer
    x = 748,263.65

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Double scale
Find fourth proportional to 977,771.82, 1,349,328.11 and 542,219.83
Similar ratio
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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.