Home / 1,415,879.74-1,953,904.50-771,300.40

Finding the Fourth Proportional to 1,415,879.74, 1,953,904.50 and 771,300.40

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Solution

The fourth proportional to 1,415,879.74, 1,953,904.50 and 771,300.40 is: 1,064,389.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,415,879.74 : 1,953,904.50 = 771,300.40 : x
  2. Step 2: Convert to fraction form
    1,415,879.74/1,953,904.50 = 771,300.40/x
  3. Step 3: Cross multiply
    1,415,879.74x = 1,953,904.50 × 771,300.40
  4. Step 4: Simplify right side
    1,415,879.74x = 1,507,047,322,411.80
  5. Step 5: Solve for x
    x = 1,507,047,322,411.80/1,415,879.74
  6. Step 6: Final answer
    x = 1,064,389.35

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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.