Home / 672,416.40-1,007,458.20-435,637.20

Finding the Fourth Proportional to 672,416.40, 1,007,458.20 and 435,637.20

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Solution

The fourth proportional to 672,416.40, 1,007,458.20 and 435,637.20 is: 652,700.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,416.40 : 1,007,458.20 = 435,637.20 : x
  2. Step 2: Convert to fraction form
    672,416.40/1,007,458.20 = 435,637.20/x
  3. Step 3: Cross multiply
    672,416.40x = 1,007,458.20 × 435,637.20
  4. Step 4: Simplify right side
    672,416.40x = 438,886,269,365.04
  5. Step 5: Solve for x
    x = 438,886,269,365.04/672,416.40
  6. Step 6: Final answer
    x = 652,700.13

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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.