Home / 630,315.77-869,834.71-343,835.86

Finding the Fourth Proportional to 630,315.77, 869,834.71 and 343,835.86

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Solution

The fourth proportional to 630,315.77, 869,834.71 and 343,835.86 is: 474,492.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,315.77 : 869,834.71 = 343,835.86 : x
  2. Step 2: Convert to fraction form
    630,315.77/869,834.71 = 343,835.86/x
  3. Step 3: Cross multiply
    630,315.77x = 869,834.71 × 343,835.86
  4. Step 4: Simplify right side
    630,315.77x = 299,080,365,570.70
  5. Step 5: Solve for x
    x = 299,080,365,570.70/630,315.77
  6. Step 6: Final answer
    x = 474,492.91

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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.