Home / 742,403.36-1,024,516.64-402,871.61

Finding the Fourth Proportional to 742,403.36, 1,024,516.64 and 402,871.61

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Solution

The fourth proportional to 742,403.36, 1,024,516.64 and 402,871.61 is: 555,962.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,403.36 : 1,024,516.64 = 402,871.61 : x
  2. Step 2: Convert to fraction form
    742,403.36/1,024,516.64 = 402,871.61/x
  3. Step 3: Cross multiply
    742,403.36x = 1,024,516.64 × 402,871.61
  4. Step 4: Simplify right side
    742,403.36x = 412,748,666,674.48
  5. Step 5: Solve for x
    x = 412,748,666,674.48/742,403.36
  6. Step 6: Final answer
    x = 555,962.82

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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.