Home / 495,298.80-683,256.60-313,705.20

Finding the Fourth Proportional to 495,298.80, 683,256.60 and 313,705.20

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Solution

The fourth proportional to 495,298.80, 683,256.60 and 313,705.20 is: 432,751.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,298.80 : 683,256.60 = 313,705.20 : x
  2. Step 2: Convert to fraction form
    495,298.80/683,256.60 = 313,705.20/x
  3. Step 3: Cross multiply
    495,298.80x = 683,256.60 × 313,705.20
  4. Step 4: Simplify right side
    495,298.80x = 214,341,148,354.32
  5. Step 5: Solve for x
    x = 214,341,148,354.32/495,298.80
  6. Step 6: Final answer
    x = 432,751.20

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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.