Finding the Fourth Proportional to 644,295.24, 889,572.12 and 402,686.28
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Solution
The fourth proportional to 644,295.24, 889,572.12 and 402,686.28 is: 555,985.00
Step by Step Solution
- Step 1: Write the proportion equation
644,295.24 : 889,572.12 = 402,686.28 : x - Step 2: Convert to fraction form
644,295.24/889,572.12 = 402,686.28/x - Step 3: Cross multiply
644,295.24x = 889,572.12 × 402,686.28 - Step 4: Simplify right side
644,295.24x = 358,218,487,794.51 - Step 5: Solve for x
x = 358,218,487,794.51/644,295.24 - Step 6: Final answer
x = 555,985.00
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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.