Home / 992,038.08-1,369,688.64-665,840.24

Finding the Fourth Proportional to 992,038.08, 1,369,688.64 and 665,840.24

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Solution

The fourth proportional to 992,038.08, 1,369,688.64 and 665,840.24 is: 919,313.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,038.08 : 1,369,688.64 = 665,840.24 : x
  2. Step 2: Convert to fraction form
    992,038.08/1,369,688.64 = 665,840.24/x
  3. Step 3: Cross multiply
    992,038.08x = 1,369,688.64 × 665,840.24
  4. Step 4: Simplify right side
    992,038.08x = 911,993,812,782.87
  5. Step 5: Solve for x
    x = 911,993,812,782.87/992,038.08
  6. Step 6: Final answer
    x = 919,313.31

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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.