Home / 776,866.01-1,072,128.99-470,955.28

Finding the Fourth Proportional to 776,866.01, 1,072,128.99 and 470,955.28

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Solution

The fourth proportional to 776,866.01, 1,072,128.99 and 470,955.28 is: 649,950.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,866.01 : 1,072,128.99 = 470,955.28 : x
  2. Step 2: Convert to fraction form
    776,866.01/1,072,128.99 = 470,955.28/x
  3. Step 3: Cross multiply
    776,866.01x = 1,072,128.99 × 470,955.28
  4. Step 4: Simplify right side
    776,866.01x = 504,924,808,681.57
  5. Step 5: Solve for x
    x = 504,924,808,681.57/776,866.01
  6. Step 6: Final answer
    x = 649,950.96

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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.