Home / 530,284.41-731,807.87-288,582.57

Finding the Fourth Proportional to 530,284.41, 731,807.87 and 288,582.57

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Solution

The fourth proportional to 530,284.41, 731,807.87 and 288,582.57 is: 398,252.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,284.41 : 731,807.87 = 288,582.57 : x
  2. Step 2: Convert to fraction form
    530,284.41/731,807.87 = 288,582.57/x
  3. Step 3: Cross multiply
    530,284.41x = 731,807.87 × 288,582.57
  4. Step 4: Simplify right side
    530,284.41x = 211,186,995,870.83
  5. Step 5: Solve for x
    x = 211,186,995,870.83/530,284.41
  6. Step 6: Final answer
    x = 398,252.32

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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.