Home / 993,101.40-1,490,429.70-460,688.40

Finding the Fourth Proportional to 993,101.40, 1,490,429.70 and 460,688.40

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Solution

The fourth proportional to 993,101.40, 1,490,429.70 and 460,688.40 is: 691,393.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,101.40 : 1,490,429.70 = 460,688.40 : x
  2. Step 2: Convert to fraction form
    993,101.40/1,490,429.70 = 460,688.40/x
  3. Step 3: Cross multiply
    993,101.40x = 1,490,429.70 × 460,688.40
  4. Step 4: Simplify right side
    993,101.40x = 686,623,673,805.48
  5. Step 5: Solve for x
    x = 686,623,673,805.48/993,101.40
  6. Step 6: Final answer
    x = 691,393.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.