Finding the Fourth Proportional to 528,564.13, 729,423.84 and 286,848.79
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Solution
The fourth proportional to 528,564.13, 729,423.84 and 286,848.79 is: 395,854.23
Step by Step Solution
- Step 1: Write the proportion equation
528,564.13 : 729,423.84 = 286,848.79 : x - Step 2: Convert to fraction form
528,564.13/729,423.84 = 286,848.79/x - Step 3: Cross multiply
528,564.13x = 729,423.84 × 286,848.79 - Step 4: Simplify right side
528,564.13x = 209,234,345,901.15 - Step 5: Solve for x
x = 209,234,345,901.15/528,564.13 - Step 6: Final answer
x = 395,854.23
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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.