Finding the Fourth Proportional to 692,706.16, 1,038,140.70 and 355,733.20
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Solution
The fourth proportional to 692,706.16, 1,038,140.70 and 355,733.20 is: 533,128.09
Step by Step Solution
- Step 1: Write the proportion equation
692,706.16 : 1,038,140.70 = 355,733.20 : x - Step 2: Convert to fraction form
692,706.16/1,038,140.70 = 355,733.20/x - Step 3: Cross multiply
692,706.16x = 1,038,140.70 × 355,733.20 - Step 4: Simplify right side
692,706.16x = 369,301,113,261.24 - Step 5: Solve for x
x = 369,301,113,261.24/692,706.16 - Step 6: Final answer
x = 533,128.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.