Home / 630,048.96-869,488.56-343,584.72

Finding the Fourth Proportional to 630,048.96, 869,488.56 and 343,584.72

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Solution

The fourth proportional to 630,048.96, 869,488.56 and 343,584.72 is: 474,158.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,048.96 : 869,488.56 = 343,584.72 : x
  2. Step 2: Convert to fraction form
    630,048.96/869,488.56 = 343,584.72/x
  3. Step 3: Cross multiply
    630,048.96x = 869,488.56 × 343,584.72
  4. Step 4: Simplify right side
    630,048.96x = 298,742,983,430.80
  5. Step 5: Solve for x
    x = 298,742,983,430.80/630,048.96
  6. Step 6: Final answer
    x = 474,158.36

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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.