Home / 830,624.24-1,245,061.56-430,840.64

Finding the Fourth Proportional to 830,624.24, 1,245,061.56 and 430,840.64

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Solution

The fourth proportional to 830,624.24, 1,245,061.56 and 430,840.64 is: 645,807.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,624.24 : 1,245,061.56 = 430,840.64 : x
  2. Step 2: Convert to fraction form
    830,624.24/1,245,061.56 = 430,840.64/x
  3. Step 3: Cross multiply
    830,624.24x = 1,245,061.56 × 430,840.64
  4. Step 4: Simplify right side
    830,624.24x = 536,423,119,349.80
  5. Step 5: Solve for x
    x = 536,423,119,349.80/830,624.24
  6. Step 6: Final answer
    x = 645,807.21

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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.