Home / 579,582.74-869,624.40-313,530.54

Finding the Fourth Proportional to 579,582.74, 869,624.40 and 313,530.54

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Solution

The fourth proportional to 579,582.74, 869,624.40 and 313,530.54 is: 470,431.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,582.74 : 869,624.40 = 313,530.54 : x
  2. Step 2: Convert to fraction form
    579,582.74/869,624.40 = 313,530.54/x
  3. Step 3: Cross multiply
    579,582.74x = 869,624.40 × 313,530.54
  4. Step 4: Simplify right side
    579,582.74x = 272,653,807,729.18
  5. Step 5: Solve for x
    x = 272,653,807,729.18/579,582.74
  6. Step 6: Final answer
    x = 470,431.21

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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.