Home / 874,615.08-1,312,303.82-306,403.80

Finding the Fourth Proportional to 874,615.08, 1,312,303.82 and 306,403.80

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Solution

The fourth proportional to 874,615.08, 1,312,303.82 and 306,403.80 is: 459,739.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,615.08 : 1,312,303.82 = 306,403.80 : x
  2. Step 2: Convert to fraction form
    874,615.08/1,312,303.82 = 306,403.80/x
  3. Step 3: Cross multiply
    874,615.08x = 1,312,303.82 × 306,403.80
  4. Step 4: Simplify right side
    874,615.08x = 402,094,877,202.52
  5. Step 5: Solve for x
    x = 402,094,877,202.52/874,615.08
  6. Step 6: Final answer
    x = 459,739.25

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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.