Home / 900,327.10-1,242,617.61-578,439.58

Finding the Fourth Proportional to 900,327.10, 1,242,617.61 and 578,439.58

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Solution

The fourth proportional to 900,327.10, 1,242,617.61 and 578,439.58 is: 798,353.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,327.10 : 1,242,617.61 = 578,439.58 : x
  2. Step 2: Convert to fraction form
    900,327.10/1,242,617.61 = 578,439.58/x
  3. Step 3: Cross multiply
    900,327.10x = 1,242,617.61 × 578,439.58
  4. Step 4: Simplify right side
    900,327.10x = 718,779,208,429.00
  5. Step 5: Solve for x
    x = 718,779,208,429.00/900,327.10
  6. Step 6: Final answer
    x = 798,353.41

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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.