Home / 742,309.10-1,024,398.47-402,777.35

Finding the Fourth Proportional to 742,309.10, 1,024,398.47 and 402,777.35

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Solution

The fourth proportional to 742,309.10, 1,024,398.47 and 402,777.35 is: 555,839.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,309.10 : 1,024,398.47 = 402,777.35 : x
  2. Step 2: Convert to fraction form
    742,309.10/1,024,398.47 = 402,777.35/x
  3. Step 3: Cross multiply
    742,309.10x = 1,024,398.47 × 402,777.35
  4. Step 4: Simplify right side
    742,309.10x = 412,604,501,090.66
  5. Step 5: Solve for x
    x = 412,604,501,090.66/742,309.10
  6. Step 6: Final answer
    x = 555,839.21

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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.