Home / 1,054,427.76-1,581,314.58-380,421.45

Finding the Fourth Proportional to 1,054,427.76, 1,581,314.58 and 380,421.45

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Solution

The fourth proportional to 1,054,427.76, 1,581,314.58 and 380,421.45 is: 570,514.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,054,427.76 : 1,581,314.58 = 380,421.45 : x
  2. Step 2: Convert to fraction form
    1,054,427.76/1,581,314.58 = 380,421.45/x
  3. Step 3: Cross multiply
    1,054,427.76x = 1,581,314.58 × 380,421.45
  4. Step 4: Simplify right side
    1,054,427.76x = 601,565,985,429.74
  5. Step 5: Solve for x
    x = 601,565,985,429.74/1,054,427.76
  6. Step 6: Final answer
    x = 570,514.18

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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.