Home / 910,479.69-1,256,455.83-497,014.80

Finding the Fourth Proportional to 910,479.69, 1,256,455.83 and 497,014.80

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Solution

The fourth proportional to 910,479.69, 1,256,455.83 and 497,014.80 is: 685,877.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,479.69 : 1,256,455.83 = 497,014.80 : x
  2. Step 2: Convert to fraction form
    910,479.69/1,256,455.83 = 497,014.80/x
  3. Step 3: Cross multiply
    910,479.69x = 1,256,455.83 × 497,014.80
  4. Step 4: Simplify right side
    910,479.69x = 624,477,143,056.28
  5. Step 5: Solve for x
    x = 624,477,143,056.28/910,479.69
  6. Step 6: Final answer
    x = 685,877.07

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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.