Home / 877,107.51-1,210,408.47-474,699.51

Finding the Fourth Proportional to 877,107.51, 1,210,408.47 and 474,699.51

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Solution

The fourth proportional to 877,107.51, 1,210,408.47 and 474,699.51 is: 655,085.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,107.51 : 1,210,408.47 = 474,699.51 : x
  2. Step 2: Convert to fraction form
    877,107.51/1,210,408.47 = 474,699.51/x
  3. Step 3: Cross multiply
    877,107.51x = 1,210,408.47 × 474,699.51
  4. Step 4: Simplify right side
    877,107.51x = 574,580,307,608.85
  5. Step 5: Solve for x
    x = 574,580,307,608.85/877,107.51
  6. Step 6: Final answer
    x = 655,085.38

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Double scale
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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.