Finding the Fourth Proportional to 1,069,146.48, 1,475,422.02 and 639,426.54
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Solution
The fourth proportional to 1,069,146.48, 1,475,422.02 and 639,426.54 is: 882,408.55
Step by Step Solution
- Step 1: Write the proportion equation
1,069,146.48 : 1,475,422.02 = 639,426.54 : x - Step 2: Convert to fraction form
1,069,146.48/1,475,422.02 = 639,426.54/x - Step 3: Cross multiply
1,069,146.48x = 1,475,422.02 × 639,426.54 - Step 4: Simplify right side
1,069,146.48x = 943,423,997,288.41 - Step 5: Solve for x
x = 943,423,997,288.41/1,069,146.48 - Step 6: Final answer
x = 882,408.55
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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.