Finding the Fourth Proportional to 692,702.16, 1,038,134.70 and 355,729.20
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Solution
The fourth proportional to 692,702.16, 1,038,134.70 and 355,729.20 is: 533,122.09
Step by Step Solution
- Step 1: Write the proportion equation
692,702.16 : 1,038,134.70 = 355,729.20 : x - Step 2: Convert to fraction form
692,702.16/1,038,134.70 = 355,729.20/x - Step 3: Cross multiply
692,702.16x = 1,038,134.70 × 355,729.20 - Step 4: Simplify right side
692,702.16x = 369,294,826,323.24 - Step 5: Solve for x
x = 369,294,826,323.24/692,702.16 - Step 6: Final answer
x = 533,122.09
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.