Home / 745,812.40-1,029,227.80-423,529.20

Finding the Fourth Proportional to 745,812.40, 1,029,227.80 and 423,529.20

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Solution

The fourth proportional to 745,812.40, 1,029,227.80 and 423,529.20 is: 584,474.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,812.40 : 1,029,227.80 = 423,529.20 : x
  2. Step 2: Convert to fraction form
    745,812.40/1,029,227.80 = 423,529.20/x
  3. Step 3: Cross multiply
    745,812.40x = 1,029,227.80 × 423,529.20
  4. Step 4: Simplify right side
    745,812.40x = 435,908,026,751.76
  5. Step 5: Solve for x
    x = 435,908,026,751.76/745,812.40
  6. Step 6: Final answer
    x = 584,474.09

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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.