Home / 761,686.10-1,051,139.96-417,499.08

Finding the Fourth Proportional to 761,686.10, 1,051,139.96 and 417,499.08

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Solution

The fourth proportional to 761,686.10, 1,051,139.96 and 417,499.08 is: 576,155.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,686.10 : 1,051,139.96 = 417,499.08 : x
  2. Step 2: Convert to fraction form
    761,686.10/1,051,139.96 = 417,499.08/x
  3. Step 3: Cross multiply
    761,686.10x = 1,051,139.96 × 417,499.08
  4. Step 4: Simplify right side
    761,686.10x = 438,849,966,251.24
  5. Step 5: Solve for x
    x = 438,849,966,251.24/761,686.10
  6. Step 6: Final answer
    x = 576,155.93

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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.