Home / 900,645.42-1,242,687.18-537,998.30

Finding the Fourth Proportional to 900,645.42, 1,242,687.18 and 537,998.30

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Solution

The fourth proportional to 900,645.42, 1,242,687.18 and 537,998.30 is: 742,316.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,645.42 : 1,242,687.18 = 537,998.30 : x
  2. Step 2: Convert to fraction form
    900,645.42/1,242,687.18 = 537,998.30/x
  3. Step 3: Cross multiply
    900,645.42x = 1,242,687.18 × 537,998.30
  4. Step 4: Simplify right side
    900,645.42x = 668,563,590,271.79
  5. Step 5: Solve for x
    x = 668,563,590,271.79/900,645.42
  6. Step 6: Final answer
    x = 742,316.09

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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.