Home / 703,934.42-971,423.63-398,070.86

Finding the Fourth Proportional to 703,934.42, 971,423.63 and 398,070.86

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Solution

The fourth proportional to 703,934.42, 971,423.63 and 398,070.86 is: 549,334.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,934.42 : 971,423.63 = 398,070.86 : x
  2. Step 2: Convert to fraction form
    703,934.42/971,423.63 = 398,070.86/x
  3. Step 3: Cross multiply
    703,934.42x = 971,423.63 × 398,070.86
  4. Step 4: Simplify right side
    703,934.42x = 386,695,436,702.86
  5. Step 5: Solve for x
    x = 386,695,436,702.86/703,934.42
  6. Step 6: Final answer
    x = 549,334.47

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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.