Home / 740,284.48-1,021,594.80-400,751.92

Finding the Fourth Proportional to 740,284.48, 1,021,594.80 and 400,751.92

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Solution

The fourth proportional to 740,284.48, 1,021,594.80 and 400,751.92 is: 553,038.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,284.48 : 1,021,594.80 = 400,751.92 : x
  2. Step 2: Convert to fraction form
    740,284.48/1,021,594.80 = 400,751.92/x
  3. Step 3: Cross multiply
    740,284.48x = 1,021,594.80 × 400,751.92
  4. Step 4: Simplify right side
    740,284.48x = 409,406,077,562.02
  5. Step 5: Solve for x
    x = 409,406,077,562.02/740,284.48
  6. Step 6: Final answer
    x = 553,038.85

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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.