Finding the Fourth Proportional to 688,178.06, 1,032,266.71 and 214,903.98
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Solution
The fourth proportional to 688,178.06, 1,032,266.71 and 214,903.98 is: 322,355.85
Step by Step Solution
- Step 1: Write the proportion equation
688,178.06 : 1,032,266.71 = 214,903.98 : x - Step 2: Convert to fraction form
688,178.06/1,032,266.71 = 214,903.98/x - Step 3: Cross multiply
688,178.06x = 1,032,266.71 × 214,903.98 - Step 4: Simplify right side
688,178.06x = 221,838,224,400.51 - Step 5: Solve for x
x = 221,838,224,400.51/688,178.06 - Step 6: Final answer
x = 322,355.85
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1.5x scale
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.