Home / 646,478.36-892,140.12-374,703.89

Finding the Fourth Proportional to 646,478.36, 892,140.12 and 374,703.89

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Solution

The fourth proportional to 646,478.36, 892,140.12 and 374,703.89 is: 517,091.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,478.36 : 892,140.12 = 374,703.89 : x
  2. Step 2: Convert to fraction form
    646,478.36/892,140.12 = 374,703.89/x
  3. Step 3: Cross multiply
    646,478.36x = 892,140.12 × 374,703.89
  4. Step 4: Simplify right side
    646,478.36x = 334,288,373,389.07
  5. Step 5: Solve for x
    x = 334,288,373,389.07/646,478.36
  6. Step 6: Final answer
    x = 517,091.36

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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.