Home / 851,256.90-1,276,302.15-402,192.90

Finding the Fourth Proportional to 851,256.90, 1,276,302.15 and 402,192.90

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Solution

The fourth proportional to 851,256.90, 1,276,302.15 and 402,192.90 is: 603,013.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,256.90 : 1,276,302.15 = 402,192.90 : x
  2. Step 2: Convert to fraction form
    851,256.90/1,276,302.15 = 402,192.90/x
  3. Step 3: Cross multiply
    851,256.90x = 1,276,302.15 × 402,192.90
  4. Step 4: Simplify right side
    851,256.90x = 513,319,662,984.74
  5. Step 5: Solve for x
    x = 513,319,662,984.74/851,256.90
  6. Step 6: Final answer
    x = 603,013.81

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1.5x scale

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.