Home / 740,228.13-1,021,457.79-417,970.04

Finding the Fourth Proportional to 740,228.13, 1,021,457.79 and 417,970.04

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Solution

The fourth proportional to 740,228.13, 1,021,457.79 and 417,970.04 is: 576,766.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,228.13 : 1,021,457.79 = 417,970.04 : x
  2. Step 2: Convert to fraction form
    740,228.13/1,021,457.79 = 417,970.04/x
  3. Step 3: Cross multiply
    740,228.13x = 1,021,457.79 × 417,970.04
  4. Step 4: Simplify right side
    740,228.13x = 426,938,748,237.32
  5. Step 5: Solve for x
    x = 426,938,748,237.32/740,228.13
  6. Step 6: Final answer
    x = 576,766.45

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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.