Home / 745,312.62-1,028,624.36-423,127.02

Finding the Fourth Proportional to 745,312.62, 1,028,624.36 and 423,127.02

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Solution

The fourth proportional to 745,312.62, 1,028,624.36 and 423,127.02 is: 583,968.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,312.62 : 1,028,624.36 = 423,127.02 : x
  2. Step 2: Convert to fraction form
    745,312.62/1,028,624.36 = 423,127.02/x
  3. Step 3: Cross multiply
    745,312.62x = 1,028,624.36 × 423,127.02
  4. Step 4: Simplify right side
    745,312.62x = 435,238,758,030.57
  5. Step 5: Solve for x
    x = 435,238,758,030.57/745,312.62
  6. Step 6: Final answer
    x = 583,968.05

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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.