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Finding the Fourth Proportional to 729,036.40, 1,018,289 and 729,036.40

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Solution

The fourth proportional to 729,036.40, 1,018,289 and 729,036.40 is: 1,018,289.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,036.40 : 1,018,289 = 729,036.40 : x
  2. Step 2: Convert to fraction form
    729,036.40/1,018,289 = 729,036.40/x
  3. Step 3: Cross multiply
    729,036.40x = 1,018,289 × 729,036.40
  4. Step 4: Simplify right side
    729,036.40x = 742,369,746,719.60
  5. Step 5: Solve for x
    x = 742,369,746,719.60/729,036.40
  6. Step 6: Final answer
    x = 1,018,289.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.